Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - Golang Software Engineer Overview We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action. As part of the application development team, your role will focus on creating and maintaining products across the whole lifecycle. Role • Create and maintaining microservices, primarily in Golang, taking increasing responsibility. • Assist with design and build to solve bugs, improve performance, and add new features. • Containerise your services and make ready for deployment onto a k8s environment using helm charts. • Develop understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code. • Write tests with high coverage including unit, contract, e2e and integration. • Version control code with git and build, test and deploy using ci/cd pipelines. • Build and test remotely on your own machine and deploy to low level envs. • Participate in the review of team members code. • Perform demos and join acceptance discussions with analysts, developers and product owners. • Assist in task planning and review as part of a sprint based workflow. • Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements. • The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday. All About You First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are detail oriented, and enjoy writing and reviewing code to a high standard with tests to prove it. • Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary. • You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs and in-memory/NoSQL stores. • You are familiar with working in a devops based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to be evolve along with the development process and contribute to its success. • You have the ability to communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers and enterprise devops and security professionals. • You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique and particular demands of scale up stage software engineering. • You have experience or are keen to engage with productionising machine learning technologies. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
07/12/2025
Full time
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - Golang Software Engineer Overview We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action. As part of the application development team, your role will focus on creating and maintaining products across the whole lifecycle. Role • Create and maintaining microservices, primarily in Golang, taking increasing responsibility. • Assist with design and build to solve bugs, improve performance, and add new features. • Containerise your services and make ready for deployment onto a k8s environment using helm charts. • Develop understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code. • Write tests with high coverage including unit, contract, e2e and integration. • Version control code with git and build, test and deploy using ci/cd pipelines. • Build and test remotely on your own machine and deploy to low level envs. • Participate in the review of team members code. • Perform demos and join acceptance discussions with analysts, developers and product owners. • Assist in task planning and review as part of a sprint based workflow. • Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements. • The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday. All About You First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are detail oriented, and enjoy writing and reviewing code to a high standard with tests to prove it. • Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary. • You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs and in-memory/NoSQL stores. • You are familiar with working in a devops based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to be evolve along with the development process and contribute to its success. • You have the ability to communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers and enterprise devops and security professionals. • You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique and particular demands of scale up stage software engineering. • You have experience or are keen to engage with productionising machine learning technologies. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - Golang Software Engineer Overview We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action. As part of the application development team, your role will focus on creating and maintaining products across the whole lifecycle. Role • Create and maintaining microservices, primarily in Golang, taking increasing responsibility. • Assist with design and build to solve bugs, improve performance, and add new features. • Containerise your services and make ready for deployment onto a k8s environment using helm charts. • Develop understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code. • Write tests with high coverage including unit, contract, e2e and integration. • Version control code with git and build, test and deploy using ci/cd pipelines. • Build and test remotely on your own machine and deploy to low level envs. • Participate in the review of team members code. • Perform demos and join acceptance discussions with analysts, developers and product owners. • Assist in task planning and review as part of a sprint based workflow. • Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements. • The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday. All About You First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are detail oriented, and enjoy writing and reviewing code to a high standard with tests to prove it. • Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary. • You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs and in-memory/NoSQL stores. • You are familiar with working in a devops based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to be evolve along with the development process and contribute to its success. • You have the ability to communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers and enterprise devops and security professionals. • You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique and particular demands of scale up stage software engineering. • You have experience or are keen to engage with productionising machine learning technologies. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
07/12/2025
Full time
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - Golang Software Engineer Overview We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action. As part of the application development team, your role will focus on creating and maintaining products across the whole lifecycle. Role • Create and maintaining microservices, primarily in Golang, taking increasing responsibility. • Assist with design and build to solve bugs, improve performance, and add new features. • Containerise your services and make ready for deployment onto a k8s environment using helm charts. • Develop understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code. • Write tests with high coverage including unit, contract, e2e and integration. • Version control code with git and build, test and deploy using ci/cd pipelines. • Build and test remotely on your own machine and deploy to low level envs. • Participate in the review of team members code. • Perform demos and join acceptance discussions with analysts, developers and product owners. • Assist in task planning and review as part of a sprint based workflow. • Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements. • The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday. All About You First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are detail oriented, and enjoy writing and reviewing code to a high standard with tests to prove it. • Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary. • You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs and in-memory/NoSQL stores. • You are familiar with working in a devops based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to be evolve along with the development process and contribute to its success. • You have the ability to communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers and enterprise devops and security professionals. • You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique and particular demands of scale up stage software engineering. • You have experience or are keen to engage with productionising machine learning technologies. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build asustainableeconomy where everyone can prosper. We support a wide range of digital payments choices, making transactionssecure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - GolangSoftware Engineer Overview We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action. As part of the application development team, your role will focus on creating and maintaining products across the whole lifecycle. Role Create and maintaining microservices, primarily in Golang, taking increasing responsibility. Assist with design and build to solve bugs, improve performance, and add new features. Containerise your services and make ready for deployment onto a k8s environment using helm charts. Develop understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code. Write tests with high coverage including unit, contract, e2e and integration. Version control code with git and build, test and deploy using ci/cd pipelines. Build and test remotely on your own machine and deploy to low level envs. Participate in the review of team members code. Perform demos and join acceptance discussions with analysts, developers and product owners. Assist in task planning and review as part of a sprint based workflow. Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements. The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday. All About You First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are detail oriented, and enjoy writing and reviewing code to a high standard with tests to prove it. Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary. You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs and in-memory/NoSQL stores. You are familiar with working in a devops based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to be evolve along with the development process and contribute to its success. You have the ability to communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers and enterprise devops and security professionals. You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique and particular demands of scale up stage software engineering. You have experience or are keen to engage with productionising machine learning technologies. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercards security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercards guidelines. JBRP1_UKTJ
07/12/2025
Full time
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build asustainableeconomy where everyone can prosper. We support a wide range of digital payments choices, making transactionssecure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - GolangSoftware Engineer Overview We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action. As part of the application development team, your role will focus on creating and maintaining products across the whole lifecycle. Role Create and maintaining microservices, primarily in Golang, taking increasing responsibility. Assist with design and build to solve bugs, improve performance, and add new features. Containerise your services and make ready for deployment onto a k8s environment using helm charts. Develop understanding of end-to-end technical architecture and dependency systems. Apply that understanding in code. Write tests with high coverage including unit, contract, e2e and integration. Version control code with git and build, test and deploy using ci/cd pipelines. Build and test remotely on your own machine and deploy to low level envs. Participate in the review of team members code. Perform demos and join acceptance discussions with analysts, developers and product owners. Assist in task planning and review as part of a sprint based workflow. Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements. The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday. All About You First and foremost, you want to build products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are detail oriented, and enjoy writing and reviewing code to a high standard with tests to prove it. Demonstrable ability to write Python/Golang and SQL. You are happy to learn new programming languages and frameworks as necessary. You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, APIs and in-memory/NoSQL stores. You are familiar with working in a devops based software development workflow, including building, testing, and continuous integration/deployment. You are also happy to be evolve along with the development process and contribute to its success. You have the ability to communicate with a range of stakeholders, including subject matter experts, data scientists, software engineers and enterprise devops and security professionals. You are keen to engage with best practices for code review, version control, and change control, balancing the need for a quality codebase with the unique and particular demands of scale up stage software engineering. You have experience or are keen to engage with productionising machine learning technologies. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercards security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercards guidelines. JBRP1_UKTJ
Are you a .Net Developer with full stack capabilities who thrives on solving real-world problems with clean, scalable code? Are you excited by the idea of shaping the future of payments and backend services? If yes, this is your chance to build high-impact features in a fast-moving, supportive environment. You'll take ownership of feature development across a payment platform and backend services, working with technologies like JavaScript/TypeScript, C# (.NET), and a bit of Golang. You will design and deploy new services, resolving production issues and integrating third-party platforms. You will play a hands-on role in keeping systems secure, stable, and evolving. You'll work with modern cloud stacks including GCP and AWS, collaborating closely with non-technical stakeholders, turning ideas into elegant solutions. Role: S oftware Developer, Full Stack Software Engineer, Platform Engineer, Full Stack Engineer, Full Stack Developer, .Net Developer, .Net Software Engineer, C# .Net Developer Salary: £40k - £42.5k + Bonus and benefits Location: Milton Keynes (Hybrid - 2 days a week in the office) If you've got strong Full stack development experience with .Net (C#) and Typescript, solid cloud (AWS or Azure) knowledge, a passion for clean architecture, and you're comfortable jumping between languages and environments, we'd love to hear from you. This role will give you the chance to learn or use your skills in Golang and the Google cloud platform. Sound like something you are keen to embark upon. CLICK APPLY and send through a CV.
05/12/2025
Full time
Are you a .Net Developer with full stack capabilities who thrives on solving real-world problems with clean, scalable code? Are you excited by the idea of shaping the future of payments and backend services? If yes, this is your chance to build high-impact features in a fast-moving, supportive environment. You'll take ownership of feature development across a payment platform and backend services, working with technologies like JavaScript/TypeScript, C# (.NET), and a bit of Golang. You will design and deploy new services, resolving production issues and integrating third-party platforms. You will play a hands-on role in keeping systems secure, stable, and evolving. You'll work with modern cloud stacks including GCP and AWS, collaborating closely with non-technical stakeholders, turning ideas into elegant solutions. Role: S oftware Developer, Full Stack Software Engineer, Platform Engineer, Full Stack Engineer, Full Stack Developer, .Net Developer, .Net Software Engineer, C# .Net Developer Salary: £40k - £42.5k + Bonus and benefits Location: Milton Keynes (Hybrid - 2 days a week in the office) If you've got strong Full stack development experience with .Net (C#) and Typescript, solid cloud (AWS or Azure) knowledge, a passion for clean architecture, and you're comfortable jumping between languages and environments, we'd love to hear from you. This role will give you the chance to learn or use your skills in Golang and the Google cloud platform. Sound like something you are keen to embark upon. CLICK APPLY and send through a CV.
AI Engineer (Java, Golang) 6 Months Contract Inside IR35 Pay rate- 600- 750 GBP per day Inside IR35 Work mode- Remote We are looking for a passionate (Backend Engineer AI Engineer AI Agent Developer) to join the IT studio, the team responsible for advancing the digital workplace experience. Our mission is to give every user the best possible user experience from the moment they open their device. By doing so we seek to remove the friction of work, unblocking users to be more productive-anywhere, anytime-with simplicity and safety-with an experience that makes the client one of the best places to work. Required Skills -Experienced in designing, building, testing, debugging and optimizing code of agentic systems/workflows, MCP servers and latest AI-tools.-Experienced in designing, building, testing, debugging and optimizing code of identity authentication and authorization integrations, using standard protocols included, but not limited to, SAML, OIDC, Oauth 2.0.-Coding languages you have experience on ideally are Java and Go.-Love working on a team where you constantly learn, experiment, and iterate quickly. Randstad Technologies is acting as an Employment Business in relation to this vacancy.
04/12/2025
Contractor
AI Engineer (Java, Golang) 6 Months Contract Inside IR35 Pay rate- 600- 750 GBP per day Inside IR35 Work mode- Remote We are looking for a passionate (Backend Engineer AI Engineer AI Agent Developer) to join the IT studio, the team responsible for advancing the digital workplace experience. Our mission is to give every user the best possible user experience from the moment they open their device. By doing so we seek to remove the friction of work, unblocking users to be more productive-anywhere, anytime-with simplicity and safety-with an experience that makes the client one of the best places to work. Required Skills -Experienced in designing, building, testing, debugging and optimizing code of agentic systems/workflows, MCP servers and latest AI-tools.-Experienced in designing, building, testing, debugging and optimizing code of identity authentication and authorization integrations, using standard protocols included, but not limited to, SAML, OIDC, Oauth 2.0.-Coding languages you have experience on ideally are Java and Go.-Love working on a team where you constantly learn, experiment, and iterate quickly. Randstad Technologies is acting as an Employment Business in relation to this vacancy.
Senior Go Developer 6 months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering life cycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go Developer - Key Requirements: Strong commercial experience in Back End development Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker End-to-end software engineering experience, including system design and architecture Background in complex, large-scale, data-driven applications Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups) Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage Open-source contributions are beneficial If you're a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech company, apply today. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.
03/12/2025
Contractor
Senior Go Developer 6 months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering life cycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go Developer - Key Requirements: Strong commercial experience in Back End development Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker End-to-end software engineering experience, including system design and architecture Background in complex, large-scale, data-driven applications Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups) Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage Open-source contributions are beneficial If you're a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech company, apply today. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.
Spectrum IT Recruitment
Haddenham, Buckinghamshire
Software Engineer - GoLang, JavaScript, Linux, hardware - In office location of Aylesbury, Buckinghamshire. Some flex on hybird working. - Salary circa 50,000 - 55,000 plus benefits Technology provider of secure identity, access, and authentication solutions. My client build high-performance software and hardware systems that support mission-critical identity operations. The engineering team works across embedded systems, backend services, and security infrastructure to deliver reliable, scalable products. Role Overview You will be a versatile Software Engineer with strong experience in Go (Golang), JavaScript, Linux environments, and hardware configuration. The ideal candidate is comfortable working across the full stack-from backend services to device-level integration-and enjoys solving complex problems in a fast-paced, product-focused environment. Key Responsibilities Design, develop, and maintain backend services and APIs using Go (Golang). Build and maintain frontend or internal tooling using JavaScript (Node.js or browser-based). Contribute to system design, architecture decisions, and technical roadmaps for Red Fox ID products. Work within Linux-based environments, including scripting, system-level debugging, and performance tuning. Perform hardware setup, configuration, and integration, including peripherals, sensors, or identity-related devices. Develop and maintain automation scripts and CI/CD pipelines. Debug and troubleshoot production issues across hardware, OS, and application layers. Collaborate with cross-functional teams including product, QA, firmware, and hardware engineering. Write clear, maintainable, and well-documented code. Participate in code reviews, testing, and overall quality assurance. Required Skill Set 2+ years of professional software engineering experience. Strong proficiency in Go (Golang) for backend or systems development. Solid experience with JavaScript, ideally including Node.js or modern frontend frameworks. Hands-on experience with Linux environments, including command-line tooling, shell scripting, and systems debugging. Experience with hardware configuration (e.g., devices, sensors, embedded modules, networking equipment) and understanding of how software interfaces with hardware. Familiarity with RESTful APIs, microservices, and distributed systems. Working knowledge of Git and modern development workflows. Strong problem-solving skills and the ability to work independently or as part of a collaborative team. Beneficial Key Skills Experience with identity, authentication, or security-related technologies. Knowledge of containerization tools (e.g., Docker) and CI/CD systems. Understanding of networking concepts (TCP/IP, serial interfaces, device communication). Experience with cloud platforms (AWS, GCP, Azure). Familiarity with embedded systems, device provisioning, or firmware interactions. Experience with performance tuning in Linux or systems-level optimization. The company offer an unrivalled volume of new projects, Greenfield development and the opportunity to work with and learn from some of the sharpest developers in the area. The position is based in their offices in Aylesbury but they are able to offer some flexibility on hybrid working. If you would like to apply for this position then please contact Tom Rayner on (phone number removed) or email (url removed) to be considered. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
03/12/2025
Full time
Software Engineer - GoLang, JavaScript, Linux, hardware - In office location of Aylesbury, Buckinghamshire. Some flex on hybird working. - Salary circa 50,000 - 55,000 plus benefits Technology provider of secure identity, access, and authentication solutions. My client build high-performance software and hardware systems that support mission-critical identity operations. The engineering team works across embedded systems, backend services, and security infrastructure to deliver reliable, scalable products. Role Overview You will be a versatile Software Engineer with strong experience in Go (Golang), JavaScript, Linux environments, and hardware configuration. The ideal candidate is comfortable working across the full stack-from backend services to device-level integration-and enjoys solving complex problems in a fast-paced, product-focused environment. Key Responsibilities Design, develop, and maintain backend services and APIs using Go (Golang). Build and maintain frontend or internal tooling using JavaScript (Node.js or browser-based). Contribute to system design, architecture decisions, and technical roadmaps for Red Fox ID products. Work within Linux-based environments, including scripting, system-level debugging, and performance tuning. Perform hardware setup, configuration, and integration, including peripherals, sensors, or identity-related devices. Develop and maintain automation scripts and CI/CD pipelines. Debug and troubleshoot production issues across hardware, OS, and application layers. Collaborate with cross-functional teams including product, QA, firmware, and hardware engineering. Write clear, maintainable, and well-documented code. Participate in code reviews, testing, and overall quality assurance. Required Skill Set 2+ years of professional software engineering experience. Strong proficiency in Go (Golang) for backend or systems development. Solid experience with JavaScript, ideally including Node.js or modern frontend frameworks. Hands-on experience with Linux environments, including command-line tooling, shell scripting, and systems debugging. Experience with hardware configuration (e.g., devices, sensors, embedded modules, networking equipment) and understanding of how software interfaces with hardware. Familiarity with RESTful APIs, microservices, and distributed systems. Working knowledge of Git and modern development workflows. Strong problem-solving skills and the ability to work independently or as part of a collaborative team. Beneficial Key Skills Experience with identity, authentication, or security-related technologies. Knowledge of containerization tools (e.g., Docker) and CI/CD systems. Understanding of networking concepts (TCP/IP, serial interfaces, device communication). Experience with cloud platforms (AWS, GCP, Azure). Familiarity with embedded systems, device provisioning, or firmware interactions. Experience with performance tuning in Linux or systems-level optimization. The company offer an unrivalled volume of new projects, Greenfield development and the opportunity to work with and learn from some of the sharpest developers in the area. The position is based in their offices in Aylesbury but they are able to offer some flexibility on hybrid working. If you would like to apply for this position then please contact Tom Rayner on (phone number removed) or email (url removed) to be considered. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
Go Developer Contract (Go + some Java) Duration: 6 months Rate: £525-£600/day (Inside IR35) Clearance: Active SC Clearance required Location: UK-based, hybrid - 2 days per month in London A public-sector digital consultancy is seeking an experienced Go Developer for a 6-month contract. You'll work within a multidisciplinary team building secure, high-performance Back End services. Key Skills Strong commercial experience with Go (Golang) Additional experience with Java beneficial Microservices, REST APIs, distributed systems Secure development practices and familiarity with high-security environments Working knowledge of CI/CD and containerised environments (Docker/Kubernetes) Responsibilities Develop and maintain Go-based Back End services Contribute to architecture, design decisions, and code reviews Collaborate with engineers, product teams, and security specialists Implement secure-by-design and cloud-ready engineering practices Requirements Active SC Clearance (mandatory) Proven experience delivering Go services in production Some Java experience preferred but not essential Apply Send your CV, day rate, and availability to the hiring contact.
03/12/2025
Contractor
Go Developer Contract (Go + some Java) Duration: 6 months Rate: £525-£600/day (Inside IR35) Clearance: Active SC Clearance required Location: UK-based, hybrid - 2 days per month in London A public-sector digital consultancy is seeking an experienced Go Developer for a 6-month contract. You'll work within a multidisciplinary team building secure, high-performance Back End services. Key Skills Strong commercial experience with Go (Golang) Additional experience with Java beneficial Microservices, REST APIs, distributed systems Secure development practices and familiarity with high-security environments Working knowledge of CI/CD and containerised environments (Docker/Kubernetes) Responsibilities Develop and maintain Go-based Back End services Contribute to architecture, design decisions, and code reviews Collaborate with engineers, product teams, and security specialists Implement secure-by-design and cloud-ready engineering practices Requirements Active SC Clearance (mandatory) Proven experience delivering Go services in production Some Java experience preferred but not essential Apply Send your CV, day rate, and availability to the hiring contact.
C++ Developer £45,000-£65,000 Cheltenham Hybrid A market leader in the development and manufacture of trailblazing wireless communications systems based near to Cheltenham. To support their ever-growing team, they are looking for a C++ Developer to enhance the company s design and development capabilities. You will be joining the company s development team and will be playing an important role in defining next generation radio monitoring software. Having recently won several high-profile contracts and has ambitious plans for future development. This is an ideal time to join their team and help mould the product development process. Requirements for this software role: The successful candidate will have: A 2:1 degree or better in an engineering or numerical science discipline 2+ years industry experience. Proficiency in C++ Experience of development on Linux The role will require clearance so the successful candidate will need to have settled status and a resident of the UK for the last 5 years Desirable Extras Experience of any of the following is desirable, but not essential: Version control systems (e.g., Git or SVN) Digital Signal Processing (DSP) High performance computing (HPC) Audio processing Databases Qt The successful candidate would be joining an industry leader in Wireless Communications and an ever-growing team of talented engineers. They are prepared to offer £45k-65k per annum based on experienced. If you are interested in this C++ Developer job in Cheltenham, please apply today! Additionally, if you re interested in any other jobs across C++ in Linux or Windows Based Systems, C++ for embedded products or any other Software related roles please apply. For more information on this role, or any other jobs across Embedded, C++ programming, Embedded Linux, Golang Development, C# .net, Mechanical Design, Machine Learning, AI, FPGA, Electronics, Java, Python, Data Science, or Simulation, contact us today.
26/11/2025
Full time
C++ Developer £45,000-£65,000 Cheltenham Hybrid A market leader in the development and manufacture of trailblazing wireless communications systems based near to Cheltenham. To support their ever-growing team, they are looking for a C++ Developer to enhance the company s design and development capabilities. You will be joining the company s development team and will be playing an important role in defining next generation radio monitoring software. Having recently won several high-profile contracts and has ambitious plans for future development. This is an ideal time to join their team and help mould the product development process. Requirements for this software role: The successful candidate will have: A 2:1 degree or better in an engineering or numerical science discipline 2+ years industry experience. Proficiency in C++ Experience of development on Linux The role will require clearance so the successful candidate will need to have settled status and a resident of the UK for the last 5 years Desirable Extras Experience of any of the following is desirable, but not essential: Version control systems (e.g., Git or SVN) Digital Signal Processing (DSP) High performance computing (HPC) Audio processing Databases Qt The successful candidate would be joining an industry leader in Wireless Communications and an ever-growing team of talented engineers. They are prepared to offer £45k-65k per annum based on experienced. If you are interested in this C++ Developer job in Cheltenham, please apply today! Additionally, if you re interested in any other jobs across C++ in Linux or Windows Based Systems, C++ for embedded products or any other Software related roles please apply. For more information on this role, or any other jobs across Embedded, C++ programming, Embedded Linux, Golang Development, C# .net, Mechanical Design, Machine Learning, AI, FPGA, Electronics, Java, Python, Data Science, or Simulation, contact us today.
AI Engineer (Java, Golang) 6 Months Contract Inside IR35 Pay rate- (Apply online only) GBP per day Inside IR35 Work mode- Remote We are looking for a passionate (Backend Engineer AI Engineer AI Agent Developer) to join the IT studio, the team responsible for advancing the digital workplace experience. Our mission is to give every user the best possible user experience from the moment they open their device. By doing so we seek to remove the friction of work, unblocking users to be more productive-anywhere, anytime-with simplicity and safety-with an experience that makes the client one of the best places to work. Required Skills -Experienced in designing, building, testing, debugging and optimizing code of agentic systems/workflows, MCP servers and latest AI-tools. -Experienced in designing, building, testing, debugging and optimizing code of identity authentication and authorization integrations, using standard protocols included, but not limited to, SAML, OIDC, Oauth 2.0. -Coding languages you have experience on ideally are Java and Go. -Love working on a team where you constantly learn, experiment, and iterate quickly. Randstad Technologies is acting as an Employment Business in relation to this vacancy.
24/11/2025
Contractor
AI Engineer (Java, Golang) 6 Months Contract Inside IR35 Pay rate- (Apply online only) GBP per day Inside IR35 Work mode- Remote We are looking for a passionate (Backend Engineer AI Engineer AI Agent Developer) to join the IT studio, the team responsible for advancing the digital workplace experience. Our mission is to give every user the best possible user experience from the moment they open their device. By doing so we seek to remove the friction of work, unblocking users to be more productive-anywhere, anytime-with simplicity and safety-with an experience that makes the client one of the best places to work. Required Skills -Experienced in designing, building, testing, debugging and optimizing code of agentic systems/workflows, MCP servers and latest AI-tools. -Experienced in designing, building, testing, debugging and optimizing code of identity authentication and authorization integrations, using standard protocols included, but not limited to, SAML, OIDC, Oauth 2.0. -Coding languages you have experience on ideally are Java and Go. -Love working on a team where you constantly learn, experiment, and iterate quickly. Randstad Technologies is acting as an Employment Business in relation to this vacancy.
Are you a .Net Developer with full stack capabilities who thrives on solving real-world problems with clean, scalable code? Are you excited by the idea of shaping the future of payments and backend services? If yes, this is your chance to build high-impact features in a fast-moving, supportive environment. You ll take ownership of feature development across a payment platform and backend services, working with technologies like JavaScript/TypeScript, C# (.NET), and a bit of Golang. You will design and deploy new services, resolving production issues and integrating third-party platforms. You will play a hands-on role in keeping systems secure, stable, and evolving. You ll work with modern cloud stacks including GCP and AWS, collaborating closely with non-technical stakeholders, turning ideas into elegant solutions. Role: S oftware Developer, Full Stack Software Engineer, Platform Engineer, Full Stack Engineer, Full Stack Developer, .Net Developer, .Net Software Engineer, C# .Net Developer Salary: £40k - £42.5k + Bonus and benefits Location: Milton Keynes (Hybrid 2 days a week in the office) If you ve got strong Full stack development experience with .Net (C#) and Typescript, solid cloud (AWS or Azure) knowledge, a passion for clean architecture, and you re comfortable jumping between languages and environments, we d love to hear from you. This role will give you the chance to learn or use your skills in Golang and the Google cloud platform. Sound like something you are keen to embark upon. CLICK APPLY and send through a CV.
11/11/2025
Full time
Are you a .Net Developer with full stack capabilities who thrives on solving real-world problems with clean, scalable code? Are you excited by the idea of shaping the future of payments and backend services? If yes, this is your chance to build high-impact features in a fast-moving, supportive environment. You ll take ownership of feature development across a payment platform and backend services, working with technologies like JavaScript/TypeScript, C# (.NET), and a bit of Golang. You will design and deploy new services, resolving production issues and integrating third-party platforms. You will play a hands-on role in keeping systems secure, stable, and evolving. You ll work with modern cloud stacks including GCP and AWS, collaborating closely with non-technical stakeholders, turning ideas into elegant solutions. Role: S oftware Developer, Full Stack Software Engineer, Platform Engineer, Full Stack Engineer, Full Stack Developer, .Net Developer, .Net Software Engineer, C# .Net Developer Salary: £40k - £42.5k + Bonus and benefits Location: Milton Keynes (Hybrid 2 days a week in the office) If you ve got strong Full stack development experience with .Net (C#) and Typescript, solid cloud (AWS or Azure) knowledge, a passion for clean architecture, and you re comfortable jumping between languages and environments, we d love to hear from you. This role will give you the chance to learn or use your skills in Golang and the Google cloud platform. Sound like something you are keen to embark upon. CLICK APPLY and send through a CV.
Role: Golang Developer Salary: circa £50,000 to £85,000 per annum, depending on experience plus INCREDIBLE benefitsLocation: fully remote We're recruiting for a UK-based software company building scalable, high-performance platforms for modern infrastructure. The team is made up of experienced professionals from diverse industries, united by a passion for clean code, automation and innovation. They operate as a remote-first organisation with a strong culture of collaboration, transparency and continuous improvement. The competitive benefits package is tailored to support your wellbeing and career growth, including remote-first flexibility, 30 days annual leave plus bank holidays, a generous pension, healthcare, life assurance, personal development allowance and much more! This is a hands-on engineering role focused on writing clean, maintainable Go code. You'll collaborate with other developers and technical stakeholders to deliver high-quality features and improvements. This is a full-time permanent position, paying between circa £50,000 - £85,000 per annum, depending on experience. This Golang Developer position is fully remote. Qualifications & Skills required: 3+ years of experience in software development, with a strong focus on Go ( Golang ). Solid understanding of backend architecture, distributed systems and API design. Solid understanding of DevOps, CI/CD, infrastructure as code and cloud platforms. Excellent communication skills and a true team player Experience working with SaaS platforms or automation tools is a plus. Comfortable working in agile environments (Scrum or Kanban). Experience with microservices, event-driven systems, and containerisation (Docker, Kubernetes) - DESIRABLE Background in product management or user-centred design - DESIRABLE Familiarity with performance optimisation and data modelling - DESIRABLE What you'd be doing: Develop backend services and components using Go. Design and implement APIs, data models and automation workflows. Optimise performance, scalability and reliability of distributed systems. Participate in code reviews and contribute to technical discussions. Write unit and integration tests to ensure code quality. Collaborate with cross-functional teams to understand requirements and deliver solutions. Help identify and resolve technical bottlenecks and bugs. Benefits : 30 days annual leave plus bank holidays Competitive salary with performance bonus and annual pay reviews Private healthcare and dental coverage £1500 annual personal development allowance Enhanced maternity and paternity pay Generous pension scheme with employer matching contributions and even more If you're interested, then we'd love to hear from you - please Apply Now and send a CV for quick review. Should you require reasonable adjustments at any point during the recruitment process or if there is a better way for us to communicate, please do let us know. Developer, Software Engineer, Programmer, Golang, Go Programming, Go Lang, Go, Go Language, SaaS, Software as a service Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter and LinkedIn - Circle Recruitment.
03/10/2025
Full time
Role: Golang Developer Salary: circa £50,000 to £85,000 per annum, depending on experience plus INCREDIBLE benefitsLocation: fully remote We're recruiting for a UK-based software company building scalable, high-performance platforms for modern infrastructure. The team is made up of experienced professionals from diverse industries, united by a passion for clean code, automation and innovation. They operate as a remote-first organisation with a strong culture of collaboration, transparency and continuous improvement. The competitive benefits package is tailored to support your wellbeing and career growth, including remote-first flexibility, 30 days annual leave plus bank holidays, a generous pension, healthcare, life assurance, personal development allowance and much more! This is a hands-on engineering role focused on writing clean, maintainable Go code. You'll collaborate with other developers and technical stakeholders to deliver high-quality features and improvements. This is a full-time permanent position, paying between circa £50,000 - £85,000 per annum, depending on experience. This Golang Developer position is fully remote. Qualifications & Skills required: 3+ years of experience in software development, with a strong focus on Go ( Golang ). Solid understanding of backend architecture, distributed systems and API design. Solid understanding of DevOps, CI/CD, infrastructure as code and cloud platforms. Excellent communication skills and a true team player Experience working with SaaS platforms or automation tools is a plus. Comfortable working in agile environments (Scrum or Kanban). Experience with microservices, event-driven systems, and containerisation (Docker, Kubernetes) - DESIRABLE Background in product management or user-centred design - DESIRABLE Familiarity with performance optimisation and data modelling - DESIRABLE What you'd be doing: Develop backend services and components using Go. Design and implement APIs, data models and automation workflows. Optimise performance, scalability and reliability of distributed systems. Participate in code reviews and contribute to technical discussions. Write unit and integration tests to ensure code quality. Collaborate with cross-functional teams to understand requirements and deliver solutions. Help identify and resolve technical bottlenecks and bugs. Benefits : 30 days annual leave plus bank holidays Competitive salary with performance bonus and annual pay reviews Private healthcare and dental coverage £1500 annual personal development allowance Enhanced maternity and paternity pay Generous pension scheme with employer matching contributions and even more If you're interested, then we'd love to hear from you - please Apply Now and send a CV for quick review. Should you require reasonable adjustments at any point during the recruitment process or if there is a better way for us to communicate, please do let us know. Developer, Software Engineer, Programmer, Golang, Go Programming, Go Lang, Go, Go Language, SaaS, Software as a service Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter and LinkedIn - Circle Recruitment.
Role: Golang Developer Salary: circa £50,000 to £85,000 per annum, depending on experience plus INCREDIBLE benefitsLocation: fully remote We're recruiting for a UK-based software company building scalable, high-performance platforms for modern infrastructure. The team is made up of experienced professionals from diverse industries, united by a passion for clean code, automation and innovation. They operate as a remote-first organisation with a strong culture of collaboration, transparency and continuous improvement. The competitive benefits package is tailored to support your wellbeing and career growth, including remote-first flexibility, 30 days annual leave plus bank holidays, a generous pension, healthcare, life assurance, personal development allowance and much more! This is a hands-on engineering role focused on writing clean, maintainable Go code. You'll collaborate with other developers and technical stakeholders to deliver high-quality features and improvements. This is a full-time permanent position, paying between circa £50,000 - £85,000 per annum, depending on experience. This Golang Developer position is fully remote. Qualifications & Skills required: 3+ years of experience in software development, with a strong focus on Go ( Golang ). Solid understanding of backend architecture, distributed systems and API design. Solid understanding of DevOps, CI/CD, infrastructure as code and cloud platforms. Excellent communication skills and a true team player Experience working with SaaS platforms or automation tools is a plus. Comfortable working in agile environments (Scrum or Kanban). Experience with microservices, event-driven systems, and containerisation (Docker, Kubernetes) - DESIRABLE Background in product management or user-centred design - DESIRABLE Familiarity with performance optimisation and data modelling - DESIRABLE What you'd be doing: Develop backend services and components using Go. Design and implement APIs, data models and automation workflows. Optimise performance, scalability and reliability of distributed systems. Participate in code reviews and contribute to technical discussions. Write unit and integration tests to ensure code quality. Collaborate with cross-functional teams to understand requirements and deliver solutions. Help identify and resolve technical bottlenecks and bugs. Benefits : 30 days annual leave plus bank holidays Competitive salary with performance bonus and annual pay reviews Private healthcare and dental coverage £1500 annual personal development allowance Enhanced maternity and paternity pay Generous pension scheme with employer matching contributions and even more If you're interested, then we'd love to hear from you - please Apply Now and send a CV for quick review. Should you require reasonable adjustments at any point during the recruitment process or if there is a better way for us to communicate, please do let us know. Developer, Software Engineer, Programmer, Golang, Go Programming, Go Lang, Go, Go Language, SaaS, Software as a service Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter and LinkedIn - Circle Recruitment.
03/10/2025
Full time
Role: Golang Developer Salary: circa £50,000 to £85,000 per annum, depending on experience plus INCREDIBLE benefitsLocation: fully remote We're recruiting for a UK-based software company building scalable, high-performance platforms for modern infrastructure. The team is made up of experienced professionals from diverse industries, united by a passion for clean code, automation and innovation. They operate as a remote-first organisation with a strong culture of collaboration, transparency and continuous improvement. The competitive benefits package is tailored to support your wellbeing and career growth, including remote-first flexibility, 30 days annual leave plus bank holidays, a generous pension, healthcare, life assurance, personal development allowance and much more! This is a hands-on engineering role focused on writing clean, maintainable Go code. You'll collaborate with other developers and technical stakeholders to deliver high-quality features and improvements. This is a full-time permanent position, paying between circa £50,000 - £85,000 per annum, depending on experience. This Golang Developer position is fully remote. Qualifications & Skills required: 3+ years of experience in software development, with a strong focus on Go ( Golang ). Solid understanding of backend architecture, distributed systems and API design. Solid understanding of DevOps, CI/CD, infrastructure as code and cloud platforms. Excellent communication skills and a true team player Experience working with SaaS platforms or automation tools is a plus. Comfortable working in agile environments (Scrum or Kanban). Experience with microservices, event-driven systems, and containerisation (Docker, Kubernetes) - DESIRABLE Background in product management or user-centred design - DESIRABLE Familiarity with performance optimisation and data modelling - DESIRABLE What you'd be doing: Develop backend services and components using Go. Design and implement APIs, data models and automation workflows. Optimise performance, scalability and reliability of distributed systems. Participate in code reviews and contribute to technical discussions. Write unit and integration tests to ensure code quality. Collaborate with cross-functional teams to understand requirements and deliver solutions. Help identify and resolve technical bottlenecks and bugs. Benefits : 30 days annual leave plus bank holidays Competitive salary with performance bonus and annual pay reviews Private healthcare and dental coverage £1500 annual personal development allowance Enhanced maternity and paternity pay Generous pension scheme with employer matching contributions and even more If you're interested, then we'd love to hear from you - please Apply Now and send a CV for quick review. Should you require reasonable adjustments at any point during the recruitment process or if there is a better way for us to communicate, please do let us know. Developer, Software Engineer, Programmer, Golang, Go Programming, Go Lang, Go, Go Language, SaaS, Software as a service Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter and LinkedIn - Circle Recruitment.
Rust Engineer - Web3 - Crypto - Smart Contracts Excellent opportunity opens for an Engineer experienced in building complex systems using Rust , who is passionate about Crypto and blockchain technology and excited to drive innovation. The ideal candidate will have worked in the Crypto Space and will be well-versed at building Smart Contracts . Strong understanding of Rust and can design and implement robust, efficient, and secure systems. Comfortable writing clean, scalable, and well-tested code. Working in a fast-paced start-up environment, where you'll need to take initiative and solve problems independently. Pushing code that supports tens of billions of dollars of daily transactional volume doesn't scare you. Tech-passionate, curious and eager to learn new technologies and design patterns. Experienced at navigating up and down a deep technical stack. Capable of articulating complex technical concepts clearly and succinctly. Excellent problem-solving skills and attention to detail. About You: Bachelor's degree in Computer Science or related field, or equivalent practical experience. 4+ years of experience in systems programming, with a strong focus on Rust. Previous experience with blockchain technologies, smart contracts, and decentralised finance. You have conviction in your architecture/designs/ideas but are open minded to share and build solutions with others. Experience with AWS services, particularly related to deploying, managing, and scaling applications. Proficiency in Back End development languages, such as Typescript. Experience working with workflow engines. Interested? Please Apply! Rust Developer Rust Code Rust Coding Rust Specialist Software Engineer Developement Rust Engineer Crypto Digital Assets Blockchain Web3 Web3 Go Golang Programme Programming Decentralised Azure AWS Automate Smart Contract Smart Contracts Small Contracts Equity Bank Banking Hedgefund Trading Low Latency Ultra Low Latency Financial Services Decentralised Finance Remote WFH Hybrid Work Abroad Ethereum
03/10/2025
Full time
Rust Engineer - Web3 - Crypto - Smart Contracts Excellent opportunity opens for an Engineer experienced in building complex systems using Rust , who is passionate about Crypto and blockchain technology and excited to drive innovation. The ideal candidate will have worked in the Crypto Space and will be well-versed at building Smart Contracts . Strong understanding of Rust and can design and implement robust, efficient, and secure systems. Comfortable writing clean, scalable, and well-tested code. Working in a fast-paced start-up environment, where you'll need to take initiative and solve problems independently. Pushing code that supports tens of billions of dollars of daily transactional volume doesn't scare you. Tech-passionate, curious and eager to learn new technologies and design patterns. Experienced at navigating up and down a deep technical stack. Capable of articulating complex technical concepts clearly and succinctly. Excellent problem-solving skills and attention to detail. About You: Bachelor's degree in Computer Science or related field, or equivalent practical experience. 4+ years of experience in systems programming, with a strong focus on Rust. Previous experience with blockchain technologies, smart contracts, and decentralised finance. You have conviction in your architecture/designs/ideas but are open minded to share and build solutions with others. Experience with AWS services, particularly related to deploying, managing, and scaling applications. Proficiency in Back End development languages, such as Typescript. Experience working with workflow engines. Interested? Please Apply! Rust Developer Rust Code Rust Coding Rust Specialist Software Engineer Developement Rust Engineer Crypto Digital Assets Blockchain Web3 Web3 Go Golang Programme Programming Decentralised Azure AWS Automate Smart Contract Smart Contracts Small Contracts Equity Bank Banking Hedgefund Trading Low Latency Ultra Low Latency Financial Services Decentralised Finance Remote WFH Hybrid Work Abroad Ethereum
Senior Backend Engineer (Golang) Onsite: Tuesday, Wednesday, Thursday Our client is looking for an experienced Senior Backend Engineer with strong Golang expertise to help shape the systems, processes, and architecture driving their mission. If you re a hands-on problem solver who thrives in fast-paced, collaborative environments, this is a chance to work on impactful projects while accelerating your career in a growing company. The Role You ll be part of a cross-functional squad, delivering new features and capabilities that the business depends on. The backend is built in Go, following a documentation-first approach and a service-oriented architecture. High code quality, automated testing, and seamless deployments through CI/CD pipelines into AWS are core to the way they work. What You ll Be Doing Build & Deliver Write clean, testable, maintainable Go code Break down User Stories into clear, deliverable tasks Drive best practices across testing, code reviews, and refactoring Ensure compliance with coding standards, security, and regulations Collaborate & Influence Partner with product owners, designers, and engineers to turn requirements into technical solutions Contribute ideas that improve systems and processes Shape the Future Support technical roadmaps and long-term strategies Stay ahead of industry trends, sharing insights that spark innovation About You You enjoy tackling complex challenges, simplifying problems, and delivering outcomes that matter. You re action-oriented, detail-focused, and thrive in a collaborative, team-driven environment. Clear communication and a positive, empathetic approach set you apart. What You ll Bring 5+ years of software development with strongly typed languages (Go, Java, etc.), including 2+ years of commercial Golang experience Strong experience writing well-tested code Proven ability to take a User Story from refinement through to delivery within a sprint Solid background in data modelling and database design (SQL/NoSQL) Knowledge of distributed systems and event-driven architectures Experience building cloud-based REST API solutions Excellent communication and collaboration skills Nice to Have SaaS product experience Expertise in microservices and event-driven integration Knowledge of AWS architecture Familiarity with Terraform or other IaC tools Degree in Computer Science, Engineering, or related field
03/10/2025
Full time
Senior Backend Engineer (Golang) Onsite: Tuesday, Wednesday, Thursday Our client is looking for an experienced Senior Backend Engineer with strong Golang expertise to help shape the systems, processes, and architecture driving their mission. If you re a hands-on problem solver who thrives in fast-paced, collaborative environments, this is a chance to work on impactful projects while accelerating your career in a growing company. The Role You ll be part of a cross-functional squad, delivering new features and capabilities that the business depends on. The backend is built in Go, following a documentation-first approach and a service-oriented architecture. High code quality, automated testing, and seamless deployments through CI/CD pipelines into AWS are core to the way they work. What You ll Be Doing Build & Deliver Write clean, testable, maintainable Go code Break down User Stories into clear, deliverable tasks Drive best practices across testing, code reviews, and refactoring Ensure compliance with coding standards, security, and regulations Collaborate & Influence Partner with product owners, designers, and engineers to turn requirements into technical solutions Contribute ideas that improve systems and processes Shape the Future Support technical roadmaps and long-term strategies Stay ahead of industry trends, sharing insights that spark innovation About You You enjoy tackling complex challenges, simplifying problems, and delivering outcomes that matter. You re action-oriented, detail-focused, and thrive in a collaborative, team-driven environment. Clear communication and a positive, empathetic approach set you apart. What You ll Bring 5+ years of software development with strongly typed languages (Go, Java, etc.), including 2+ years of commercial Golang experience Strong experience writing well-tested code Proven ability to take a User Story from refinement through to delivery within a sprint Solid background in data modelling and database design (SQL/NoSQL) Knowledge of distributed systems and event-driven architectures Experience building cloud-based REST API solutions Excellent communication and collaboration skills Nice to Have SaaS product experience Expertise in microservices and event-driven integration Knowledge of AWS architecture Familiarity with Terraform or other IaC tools Degree in Computer Science, Engineering, or related field
Golang Backend Developer - Fintech Or Tech First Organisations Golang Backend Developer - Fintech Or Tech First Organisations requirement for an urgent start. The Golang Backend Developer - Fintech Or Tech First Organisations will be working for an award winning fintech client. Golang Backend Developer - Fintech Or Tech First Organisations Key Skills: Proven expertise in Golang programming . 5+ years of professional experience in Backend Development. Background in the fintech industry or experience with large tech-first companies, with a focus on scalability. Golang Backend Developer - Full Remote - Inside IR35 Contract - UK/Remote - Inside IR35
02/10/2025
Contractor
Golang Backend Developer - Fintech Or Tech First Organisations Golang Backend Developer - Fintech Or Tech First Organisations requirement for an urgent start. The Golang Backend Developer - Fintech Or Tech First Organisations will be working for an award winning fintech client. Golang Backend Developer - Fintech Or Tech First Organisations Key Skills: Proven expertise in Golang programming . 5+ years of professional experience in Backend Development. Background in the fintech industry or experience with large tech-first companies, with a focus on scalability. Golang Backend Developer - Full Remote - Inside IR35 Contract - UK/Remote - Inside IR35
Senior Go Developer 6 months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering life cycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go Developer - Key Requirements: Strong commercial experience in Back End development Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker End-to-end software engineering experience, including system design and architecture Background in complex, large-scale, data-driven applications Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups) Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage Open-source contributions are beneficial If you're a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech company, apply today. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.
01/10/2025
Contractor
Senior Go Developer 6 months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering life cycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go Developer - Key Requirements: Strong commercial experience in Back End development Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker End-to-end software engineering experience, including system design and architecture Background in complex, large-scale, data-driven applications Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups) Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage Open-source contributions are beneficial If you're a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech company, apply today. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.
Full Stack Developer London Up to £80k Hexwired has partnered with a company who are a leading company in the SaaS sector. They are looking for a Full Stack Developer who will be building and shipping mobile applications. Although you will be working in a team you should be able to work under your own steam. Key skills required for this role: Demonstrated track record of developing and delivering mobile applications, ideally using React Native. High level of proficiency in TypeScript and JavaScript, with a focus on clean, maintainable code. Hands-on experience building backend services with Node.js. Knowledge of contemporary frontend and backend frameworks, with the ability to adapt to new technologies. Strong grasp of RESTful API design and efficient mobile-to-server communication practices. The salary for this Full Stack Developer role will be up to £80,000 per annum. The company are rapidly expanding and are at the forefront of their industry. They are looking to pay circa up to £80k dependent on experience along with an excellent benefits package. If you re interested in this Full Stack Developer in London, please apply. For more information on this role, or any other jobs across; Embedded, C++ programming, Embedded Linux, Golang Development, Machine Learning, Data Science or Simulation contact us today.
01/09/2025
Full time
Full Stack Developer London Up to £80k Hexwired has partnered with a company who are a leading company in the SaaS sector. They are looking for a Full Stack Developer who will be building and shipping mobile applications. Although you will be working in a team you should be able to work under your own steam. Key skills required for this role: Demonstrated track record of developing and delivering mobile applications, ideally using React Native. High level of proficiency in TypeScript and JavaScript, with a focus on clean, maintainable code. Hands-on experience building backend services with Node.js. Knowledge of contemporary frontend and backend frameworks, with the ability to adapt to new technologies. Strong grasp of RESTful API design and efficient mobile-to-server communication practices. The salary for this Full Stack Developer role will be up to £80,000 per annum. The company are rapidly expanding and are at the forefront of their industry. They are looking to pay circa up to £80k dependent on experience along with an excellent benefits package. If you re interested in this Full Stack Developer in London, please apply. For more information on this role, or any other jobs across; Embedded, C++ programming, Embedded Linux, Golang Development, Machine Learning, Data Science or Simulation contact us today.
Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Senior Lead Cloud Platform Engineer at JPMorgan Chase within the Chief Data and Analytics Office, you'll be a key player in our agile team. We work together to enhance, build, and deliver top-notch technology products securely and efficiently. Your expertise and problem-solving skills will be crucial in promoting business impact and tackling a diverse array of technical challenges. This role offers the opportunity to apply and grow your skills in a dynamic and collaborative environment. Job Responsibilities: Provide technical guidance and direction to support business, technical teams, contractors, and vendors. Develop secure, high-quality production code; review and debug code written by others. Drive decisions influencing product design, application functionality, and technical operations. Lead design and development of secure, scalable, reliable cloud infrastructure and platform tools; serve as a subject matter expert and provide technical leadership to the cloud engineering team. Advocate firmwide frameworks, tools, and practices within the Software Development Life Cycle. Influence peers and project decision-makers to adopt leading-edge technologies. Collaborate with development teams to deliver high-quality, secure, scalable cloud applications. Identify improvement areas and prioritize initiatives aligning with business goals. Stay updated with cloud technology advancements; recommend adoption and implementation of new tools/technologies. Ensure compliance with security and regulatory requirements for the cloud. Manage Data Platforms Amazon EKS estate across multiple clusters and AWS accounts; contribute to Kubernetes software best practices, drive adoption, and coordinate annual upgrades/migrations. Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and proficient advanced experience Deep understanding of Kubernetes as a Runtime Platform, including core concepts. Experience managing upgrades and migrations of Amazon EKS clusters. Development of Kubernetes operators to automate toil and improve developer experience. Hands-on experience with one or more cloud computing platform providers (AWS, Azure, GCP). Experience with Cloud Infrastructure Provisioning Tools like Terraform, Pulumi, Crossplane, and Cloud Formation. Proficiency with programming languages like Golang, Python, Java, JavaScript/TypeScript. Experience with CNCF and alternative tooling. Strong knowledge of cloud security best practices, shift-left methodologies, and DevSecOps processes. Formal training or certification on software engineering concepts and applied experience. Advanced knowledge of software applications and technical processes, with expertise in one or more technical disciplines (e.g., cloud, AI, machine learning, mobile). Ability to tackle design and functionality problems independently with little to no oversight, with a background in Computer Science, Computer Engineering, Mathematics, or a related technical field. Preferred qualifications, capabilities, and skills Experience implementing multi-cloud architectures CKA and/or CKAD certifications. About Us J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives. We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation. About The Team Our professionals in our Corporate Functions cover a diverse range of areas from finance and risk to human resources and marketing. Our corporate teams are an essential part of our company, ensuring that we're setting our businesses, clients, customers and employees up for success.
01/09/2025
Full time
Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Senior Lead Cloud Platform Engineer at JPMorgan Chase within the Chief Data and Analytics Office, you'll be a key player in our agile team. We work together to enhance, build, and deliver top-notch technology products securely and efficiently. Your expertise and problem-solving skills will be crucial in promoting business impact and tackling a diverse array of technical challenges. This role offers the opportunity to apply and grow your skills in a dynamic and collaborative environment. Job Responsibilities: Provide technical guidance and direction to support business, technical teams, contractors, and vendors. Develop secure, high-quality production code; review and debug code written by others. Drive decisions influencing product design, application functionality, and technical operations. Lead design and development of secure, scalable, reliable cloud infrastructure and platform tools; serve as a subject matter expert and provide technical leadership to the cloud engineering team. Advocate firmwide frameworks, tools, and practices within the Software Development Life Cycle. Influence peers and project decision-makers to adopt leading-edge technologies. Collaborate with development teams to deliver high-quality, secure, scalable cloud applications. Identify improvement areas and prioritize initiatives aligning with business goals. Stay updated with cloud technology advancements; recommend adoption and implementation of new tools/technologies. Ensure compliance with security and regulatory requirements for the cloud. Manage Data Platforms Amazon EKS estate across multiple clusters and AWS accounts; contribute to Kubernetes software best practices, drive adoption, and coordinate annual upgrades/migrations. Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and proficient advanced experience Deep understanding of Kubernetes as a Runtime Platform, including core concepts. Experience managing upgrades and migrations of Amazon EKS clusters. Development of Kubernetes operators to automate toil and improve developer experience. Hands-on experience with one or more cloud computing platform providers (AWS, Azure, GCP). Experience with Cloud Infrastructure Provisioning Tools like Terraform, Pulumi, Crossplane, and Cloud Formation. Proficiency with programming languages like Golang, Python, Java, JavaScript/TypeScript. Experience with CNCF and alternative tooling. Strong knowledge of cloud security best practices, shift-left methodologies, and DevSecOps processes. Formal training or certification on software engineering concepts and applied experience. Advanced knowledge of software applications and technical processes, with expertise in one or more technical disciplines (e.g., cloud, AI, machine learning, mobile). Ability to tackle design and functionality problems independently with little to no oversight, with a background in Computer Science, Computer Engineering, Mathematics, or a related technical field. Preferred qualifications, capabilities, and skills Experience implementing multi-cloud architectures CKA and/or CKAD certifications. About Us J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives. We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation. About The Team Our professionals in our Corporate Functions cover a diverse range of areas from finance and risk to human resources and marketing. Our corporate teams are an essential part of our company, ensuring that we're setting our businesses, clients, customers and employees up for success.
GoLang Developer London, UK 6 Month Contract An incredible opportunity for an experienced GoLang Developer with advanced Back End engineering skills to join a prestigious tech client on a contract basis. This company is renowned for its engineering excellence, and they're looking for a GoLang Developer who can take their distributed systems to the next level. As a GoLang Developer, you'll be working on mission-critical, data-intensive applications that push the boundaries of technology, taking ownership of the full software engineering life cycle, including design, development, and implementation. Reporting into an Engineering Manager, the GoLang Developer will also leverage modern technologies like AWS, Kubernetes, Docker, and Kafka, whilst also architecting and implementing microservices-based solutions in collaboration with cross-functional teams. In addition, the GoLang Developer will also be responsible for optimising system performance, reliability, and scalability, as well as participating in code reviews, design discussions, and knowledge sharing. GoLang Developer - Key Requirements: Significant professional experience in software development, with a strong focus on Back End systems Proficiency in Go/Golang and proven expertise in AWS, Kubernetes, and Docker Experience with end-to-end software engineering, including system design and architecture Hands-on experience working on complex, data-intensive applications A product-focused mindset and familiarity with working in technology-driven organisations or start-ups Experience with Kafka, Cassandra, gRPC, and microservices architecture will also be beneficial, as well as experience contributing to open-source projects If you're a passionate GoLang Developer seeking a challenging and rewarding contract role with a reputable tech company, apply now! Our client is looking to onboard the right talent as soon as possible. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.
26/08/2025
Contractor
GoLang Developer London, UK 6 Month Contract An incredible opportunity for an experienced GoLang Developer with advanced Back End engineering skills to join a prestigious tech client on a contract basis. This company is renowned for its engineering excellence, and they're looking for a GoLang Developer who can take their distributed systems to the next level. As a GoLang Developer, you'll be working on mission-critical, data-intensive applications that push the boundaries of technology, taking ownership of the full software engineering life cycle, including design, development, and implementation. Reporting into an Engineering Manager, the GoLang Developer will also leverage modern technologies like AWS, Kubernetes, Docker, and Kafka, whilst also architecting and implementing microservices-based solutions in collaboration with cross-functional teams. In addition, the GoLang Developer will also be responsible for optimising system performance, reliability, and scalability, as well as participating in code reviews, design discussions, and knowledge sharing. GoLang Developer - Key Requirements: Significant professional experience in software development, with a strong focus on Back End systems Proficiency in Go/Golang and proven expertise in AWS, Kubernetes, and Docker Experience with end-to-end software engineering, including system design and architecture Hands-on experience working on complex, data-intensive applications A product-focused mindset and familiarity with working in technology-driven organisations or start-ups Experience with Kafka, Cassandra, gRPC, and microservices architecture will also be beneficial, as well as experience contributing to open-source projects If you're a passionate GoLang Developer seeking a challenging and rewarding contract role with a reputable tech company, apply now! Our client is looking to onboard the right talent as soon as possible. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.
