177 jobs found

Front End React Developer, React, Javascript, NW London to £75K A leading financial software company are looking for a Front End JavaScript developer who is proficient with React.js. The role is Offcie based in North West London, Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows, specifically Redux and RTK. You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important. Responsibilities Developing new user-facing features using React.js Building reusable components and front-end libraries for future use Translating designs and wireframes into high quality code Optimising components for maximum performance across a vast array of web-capable devices and browsers Skills Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model Experience developing with typescript Thorough understanding of React.js and its core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack, NPM, etc. Ability to understand business requirements and translate them into technical requirements A knack for benchmarking and optimization Familiarity with git Experience with React Native is a bonus THIS ROLE IS OFFICE BASED

Lead PHP Developer - PHP Laravel/Symfony/CodeIgniter; HTML, CSS, SQL/MySQL, AWS inc AI Search; Javascript Vue.js, React.js; Full Stack/Full Lice Cycle, Professional Services/Finance Systems. Permanent, London (Hybrid 2/3), £130k - £150k (On Experience) +Benefits Lead PHP Developer/Senior Web Developer/Team Lead required by global professional services company. Working on both internal systems integrating with 3rd party systems as well as customer facing web-based systems built in PHP and associated frameworks, you will lead development initiatives within the full life cycle. Working with an internationally dispersed team the Lead PHP Developer/Senior Web Developer will: Work with both Project Managers and Data Scientists to define, manage and deliver projects Play a lead role in the architecture and design of web-based systems Develop code within the full life cycle: >>>DevelopmentTestingDeploymentRefactor Develop integrations with internal and external system via APIs Undertake code reviews across PHP, Laravel, Symfony, CodeIgniter, Go/Golang (to a lesser degree), SQL/MySQL, HTML, CSS and Javascript (inc React.js and Vue.js) Architect, build, and deploy scalable, cloud-native, AI-powered data-driven products in AWS Drive the integration of AI, automation, agents, and modern tooling (including model context protocol capabilities) to enhance developer productivity and delivery pipelines Lead and develop team members across software, data, platform, and AI We are open to applications from across industry and varying levels of experience in terms of leadership and project delivery; any experience working within Agile/Scrum would be beneficial. You will however: Possess Senior level, hands-on PHP development experience with both raw OOPHP and at least one main contemporary framework such as Laravel/Symfony, CodeIgniter etc Work within the full stack of web development inc PHP, Javascript, HTML, CSS Be confident in use of various Javascript Frameworks inc Vue.js, React.js (or others) Possess strong database design skills for web-based systems utilising SQL/MySQL Be comfortable deploying enterprise applications within the AWS environment Apply microservices architecture, database design, and rigorous security standards Possess experience working with internal AI platforms as well as (ideally) AWS AI Search Demonstrate experience working within the full life cycle from design to delivery Be capable of leading diverse teams across development, DevOps, AI, Data Science This is an excellent opportunity to join a business at an exciting time of international development and play a key role in the future of its core business systems. Excellent benefits and flexible Hybrid (2 days in office) working conditions offered.

Full Stack Developer (React Native) | Brighton We're working with a leading organisation operating a high-volume, customer-facing digital platform, and they're looking to add a Full Stack Developer with React Native expertise to their growing tech team. This is a fantastic opportunity to work on a modern, scalable product used by thousands of users daily, while having real influence over technical direction and development practices. What you'll be doing: Building and enhancing mobile applications using React Native Developing end-to-end full stack solutions across web and mobile Collaborating with product and business teams to deliver impactful features Contributing to architecture, best practices, and continuous improvement Optimising performance across Front End and Back End systems What we're looking for: Strong experience with React & React Native (Expo beneficial) Solid knowledge of JavaScript/TypeScript Experience with state management tools (Redux, React Query) Full stack development experience Exposure to cloud platforms (AWS, Azure, or GCP) A proactive mindset and passion for clean, scalable code Nice to have: Experience in high-traffic or E-commerce environments Familiarity with Jira/Confluence This role will be working two to three days a week in office, based in Brighton. Brighton, East Sussex Salary: £50k to £60k DOE plus bonus plus benefits

We are looking for a skilled Java Full Stack Developer with expertise in modern web technologies, cloud infrastructure, and emerging Generative AI capabilities. The ideal candidate will be responsible for designing, developing, and deploying scalable applications using Java-based microservices and React-based frontends, while leveraging cloud-native and DevOps practices. Java Full Stack with React and Gen AI, Docker/Kubernetes, Terraform/Cloud Formatoin, MQ/Apache Kafka, Datadog/AppDynamics/Dynatrace. Required Skills Backend: Strong experience in Java , Spring Boot, and Microservices Knowledge of REST APIs, security (JWT, OAuth), and database design Frontend: Proficiency in React.js , JavaScript (ES6+), HTML, CSS Experience with state management (Redux or similar) Cloud & DevOps: Experience with Docker and Kubernetes Hands-on with Terraform or CloudFormation Familiarity with AWS or other cloud platforms Gen AI Messaging: Experience with Apache Kafka or other messaging systems Hybrid: 2/3 days in a week Onsite.

React Native Developer On behalf of our growing client based in Manchester, we are recruiting a talented React Native Developer. As React Native Developer, you will work on a greenfield project, where you will shape and define the future of our clients mobile apps while sharing your experience with the rest of the team. The React Native Developer will be responsible for: Take responsibility for the entire lifecycle of delivery from idea to operation Understand and maintain software quality for features built (Test Driven Development, Pairing, Peer Review) Understand and maintain good engineering practices Support the product owner and technical lead in the provisioning of estimates that are at an appropriate level of fidelity for the phase in the development lifecycle Make realistic commitments that you are confident of meeting and strive to do so Support the BA in the elaboration of requirements Support the QA in identifying, describing, and resolving defects Exhibit cross-functional behaviour and support other competencies within your product team The React Native Developer will have the following: You will be confident in delivering secure, high-quality React Native applications commercially. Proficient with ES5 & ES6 & Typescript Expert with different layouts and the ability to develop complex UI with design standards. Working knowledge of consuming third-party APIs and parsing JSON. You will have experience in delivering software in a test-driven style (TDD) and be familiar with appropriate automation testing processes. You will understand the benefits of simple design and are familiar with software design patterns and be pragmatic in their implementation. You will be experienced with agile ways of working and lean-agile principles You will be experienced in sharing your knowledge with other members of the development team. Benefits Flexible working, with occasional site visits for collaborative and social activities Generous holiday allowance with an extra day off on your birthday Pension and annual salary review How to Apply if you re interested in this Job: If this sounds like your perfect role, click Apply without delay! React Native Developer

LEAD SOFTWARE DEVELOPER - SC CLEARED NEW PERMANENT OPPORTUNITY IN LONDON FOR A SECURITY CLEARED LEAD DEVELOPER Exciting new opportunity for a Lead Developer to work on UK Govt. projects SC Clearance required Based in London (Hybrid - 1 day per fortnight in the office) Salary up to £90,000 + company benefits To apply, email: The Company Join a leading UK consultancy delivering innovative software solutions for high-profile government projects. You'll work alongside talented engineers and consultants to design, build, and deploy systems that make a real impact on national-scale initiatives. The Role We're looking for an experienced Lead Software Developer to take technical ownership of full-stack solutions across multiple government programmes. You'll guide teams through the entire software development lifecycle - from architecture and design through to implementation and delivery - ensuring best practices, scalability, and security throughout. This is a hands-on leadership position where you'll balance technical delivery with mentoring and architectural direction. Key Responsibilities Lead the design, development, and deployment of full-stack applications using Java, React, JavaScript , and AWS . Provide technical leadership and direction to development teams. Collaborate with architects, product owners, and stakeholders to deliver secure and scalable solutions. Champion best practices in agile delivery, CI/CD, testing, and cloud-native development. Support and mentor junior and mid-level developers. Ensure all solutions meet government and security compliance standards. Skills & Experience Essential: Active SC Clearance . Strong background in Java and React development. Proficiency with AWS and modern JavaScript frameworks. Experience leading technical teams or projects in an agile environment. Excellent problem-solving, communication, and stakeholder engagement skills. Desirable: Previous experience working in a consultancy or client-facing environment. Exposure to UK Government or public sector projects. Knowledge of microservices architecture, DevOps practices, and automation tooling. Why Join Work on high-impact government projects with real-world significance. Join a collaborative consultancy that values innovation, integrity, and growth. Hybrid working - just 1 day per fortnight in the London office . Competitive salary, training, and professional development support. Ready to take the lead on meaningful projects? Apply now to join a team where your technical expertise drives lasting impact.

Moorepay is transforming. We are a trusted leader in UK Payroll and HR solutions, but we aren't resting on our history. We are embarking on a major digital transformation to redefine how businesses manage their most important asset: their people. As the Principal Software Solutions Architect, you'll be the technical authority responsible for defining, governing, and evolving the end-to-end architecture of our "AI First" platform, ensuring architectural consistency, secure-by-design principles, and long-term scalability across all engineering squads. Working closely with the Engineering Manager, Cloud & Platform Engineering Lead, and Product leadership, this role shapes our architectural strategy, drives technical excellence, and provides deep guidance to multiple autonomous squads as we scale towards high-performing, cloud-native teams. The Architect balances hands-on solution design, strategic planning, technical oversight, and stakeholder collaboration to keep the platform robust, secure, and ready for future growth. This role defines the architectural backbone that enables the entire engineering organisation to scale effectively. As we transition to multiple autonomous squads, you will ensure our systems remain leading edge, secure, resilient, and consistent enabling rapid product delivery while maintaining high standards of engineering excellence. You will leave an enduring impact on the platform's foundations, influencing everything from service boundaries to reliability strategies and cloud platform design. This is a full time, permanent role working on a hybrid basis with 3 days per week in Manchester. Key Responsibilities: Team Leadership & Scaling Define and maintain the technical architecture vision and roadmap across all squads. Ensure alignment of architecture with business goals, engineering strategy, and long-term scalability. Drive system-wide architectural decisions, providing clear technical direction for squads. Evaluate emerging technologies and propose solutions that improve scalability, performance, and developer productivity. Mentor senior engineers and influence technical leaders across the organisation. Secure-by-Design & Compliance Embed secure-by-design principles into architectural decisions. Ensure threat modelling is performed for new features and major changes. Champion secure coding standards and integration of security testing into the delivery pipeline. Collaborate with security and compliance stakeholders to ensure solutions meet regulatory and governance requirements. Promote design patterns that minimise risk across distributed systems. Solution Design & Governance Own the end-to-end architectural design for major platform components and new product capabilities, with a focus on AI First. Work closely with Engineering Manager and Engineering Team Leads to ensure solutions are consistent, secure, and scalable. Lead architecture reviews and ensure adherence to design standards, technical patterns, and best practices. Produce solution blueprints, reference architectures, and technical documentation. Validate that all solutions support operational excellence, reliability, and maintainability. Cloud, Infrastructure, and Platform Architecture Define scalable service-based architectures leveraging cloud-native patterns. Work with the Lead SRE to ensure architectural designs account for: Observability (metrics, logs, tracing) Reliability (SLIs, SLOs, failover) CI/CD automation Infrastructure as code and environment design Drive optimisation of compute, storage, and network resources across cloud platforms (Azure/AWS). Engineering Collaboration & Technical Enablement Partner with Engineering Manager to ensure squads have clear architectural guidance. Support teams in breaking down complex technical problems into executable, scalable solutions. Provide architectural input into backlog refinement, release planning, and prioritisation. Act as the primary facilitator for cross-team architectural decision-making. Communicate architectural decisions, trade-offs, and risks to both technical and non-technical stakeholders. Continuous Improvement & Technology Standards Define and maintain engineering standards, reusable patterns, and architectural principles. Champion continuous improvement across code quality, security, performance, and operational readiness. Foster a culture of technical excellence, experimentation, and innovation. Skills & Experience Essential: Proven experience as a Principal Architect, Solutions Architect, or Senior Engineer leading architectural decisions in complex systems. Strong understanding of AI technologies such as agents and models for both accelerated design & delivery as well as delivery of product capabilities. Strong background in cloud-native architectures (microservices, event-driven, distributed systems). Deep understanding of secure-by-design principles, threat modelling, cryptography basics, and modern security practices. Experience with API design, integration patterns, and domain-driven design (DDD) and Event Driven Design. Ability to influence without authority and collaborate effectively across engineering, SRE, product, and leadership teams. Exceptional communication skills, capable of simplifying complex technical topics for diverse stakeholders. Extensive experience with modern programming platforms and frameworks (e.g., Node.js, C# .NET, React). Strong grounding in cloud platforms (AWS/Azure), including networking, identity, observability, and cost optimisation. Desirable: Experience designing solutions in regulated or compliance-driven industries. Background in DevOps, platform engineering, or SRE practices. Experience scaling architectures to support high-growth environments. Certification in cloud or architecture frameworks (AWS SA Pro, Azure Architect Expert, TOGAF, etc.).

Become the founding member of this medical device software development team On the borders of Essex and Cambridgeshire, this diagnostics company develops medical instrumentation that provides accessible and timely results for public health purposes. Their system uses a combination of embedded C running on an RTOS, A React-Native app running on Android, and centralised data collection based on the LAMP stack and MariaDB. With products already on the market, they are seeking to move their software development in house, and are seeking an experienced and adaptable Senior Software Engineer to form the nucleus of their software team. The process of taking on board software development will be gradual, and supported by current (external) developers, so immediate familiarity with the entire stack isn't expected; however, a strong understanding of embedded development, and prior experience of developing software for medical devices (and therefore a knowledge of the associated medical software standards) will be needed. As the company is still at an early stage, you may be occasionally required to help out in other (non-software) functions of the company - you will therefore need an accommodating and adaptable outlook as well as an enthusiasm for work which will have a very substantial positive impact. You will need: A strong academic background in Computer Science, Electronics or similarly applicable subject. Substantial experience as a software engineer, including software development for medical devices. Excellent coding skills in embedded C. A can-do attitude, happy to dive into new technologies and learn new skills as needed (or indeed to help out with non-software tasks as the need occasionally arises). Full existing right to work in the UK without restriction, time limit, or sponsorship. Not essential, but useful: real-time operating systems, React Native, Android, LAMP, C# or Python. If you're looking for a role that will make a massive positive impact in the world, whilst at the same time becoming the founding member of a software team, then this may be for you. The role is on-site in a pleasant countryside location. A highly competitive salary is on offer to the successful candidate. Another top job from ECM, the high-tech recruitment experts. Even if this job's not quite right, do contact us now - we may well have the ideal job for you. To discuss your requirements call ecm or email your CV. We will always ask before forwarding your CV. Please apply (quoting ref: CV27517 ) only if you are eligible to live and work in the UK. By submitting your details you certify that the information you provide is accurate.

React Native Developer (Apply online only) per day (Inside IR35) 6 months Location - Hybrid - 1-2 days per week on site in London Requirements React Native Node Take ownership of things like features and technical improvements and must be able to express ideas cleanly and concisely. Desirables TanStack Query Nest.js Integration Testing experience - Even better if this is Detox or Appium System/Service Design Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Job Title: Senior Java / Python Full Stack Developer Location: Glasgow (x 5 days in office) Salary/Rate: 410 a day (Inside IR35) Start Date: April 2026 Job Type: Contract - 6 months Job Overview: We are seeking an experienced Senior Java / Python Full Stack Developer to design, develop, and maintain scalable enterprise applications. The successful candidate will play a key role in delivering high-quality solutions using Java, Python, Spring Boot, AWS, and modern frontend technologies . You will collaborate with cross-functional teams to build robust, high-performance applications while ensuring code quality, scalability, and security across the development lifecycle. Key Responsibilities - Develop high-quality software design and architecture using AWS, SQL, Spring Boot, Java, Spring MVC, JavaScript, Python and MySQL. - Collaborate with cross-functional teams to define, design, and ship new features. - Some hands on knowledge on React JS, Redux, HTML5, CSS3 - Some exposure to frontend testing tools like Jest - Ensure the performance, quality, and responsiveness of applications. - Identify and correct bottlenecks and fix bugs. - Maintain code quality, organization, and automation. - Implement security and data protection measures. - Conduct software analysis, programming, testing, and debugging. - Oversee the development of documentation throughout the software development life cycle. - Provide technical guidance and support to team members. - Stay up-to-date with emerging technologies and industry trends. - Optimize applications for maximum speed and scalability. - Participate in code reviews to maintain high code quality standards. - Contribute to continuous improvement by investigating alternatives and technologies. If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

We are working with a well established engineering group seeking a Senior Fullstack Developer to support the continued development of their core operational and customer facing systems. This is a hands-on, delivery-focused role, where you will be actively building, improving and maintaining live systems used across the business. The role would suit a senior developer who enjoys staying close to the code, while supporting and mentoring a junior developer. You will contribute directly to customer portals, APIs and IoT integrations while contributing to technical decisions and supporting development best practice within the team. Key Duties and Responsibilities Design, develop and deploy scalable web applications across frontend and backend environments using modern frameworks and cloud platforms. Build and enhance customer facing portals including dashboards, mapping functionality, role based access control and IoT integrations. Develop, maintain and optimise RESTful and GraphQL APIs to support internal systems and third party services. Support the adoption and continuous improvement of DevOps practices including CI and CD pipelines, monitoring and automated deployments. Provide technical guidance to junior developers through code reviews, mentoring and day to day collaboration. Contribute to technical improvements and the ongoing evolution of the existing platform. Work closely with stakeholders across the business to ensure software solutions align with operational and commercial requirements. Maintain clear and accurate technical documentation and contribute to continuous improvement initiatives. Skills and Experience Required Proven experience as a Fullstack Developer with strong capability across backend development using .NET and C#. Experience with frontend development using ReactJS. Experience working with cloud platforms, with Azure strongly preferred. Strong background designing and consuming RESTful and GraphQL APIs. Good understanding of data modelling and experience working with SQL, NoSQL or similar database technologies. Demonstrable experience working with DevOps pipelines, CI and CD processes and automated testing. Solid understanding of secure coding practices, authentication methods such as OAuth2, and role based access control. Strong analytical and problem solving skills with the ability to work independently on complex tasks. Confident communicator able to work effectively with both technical and non technical stakeholders. Degree in Computer Science or equivalent practical experience is desirable. Exposure to React Native, Terraform or IoT technologies such as MQTT, Modbus TCP IP or Azure IoT Hub would be advantageous. Summary Position: Fullstack Developer Location: Chandlers Ford Duration: Permanent Salary: 55,000 to 65,000 plus bonus and benefits Start: Notice dependent This is a strong opportunity for an experienced Fullstack Developer to take on a meaningful role within a growing engineering led organisation, working on modern platforms with real world operational impact. Apply now or contact the Kiota team for more details.

Job Title: Full-Stack Developer Location: Bournemouth (x 5 days in office) Salary/Rate: 410 a day (Inside IR35) Start Date: April 2026 Job Type: Contract - 6 months Job Overview: We are seeking an experienced Senior Java / Python Full Stack Developer to design, develop, and maintain scalable enterprise applications at our client who is a leading global investment bank. The successful candidate will play a key role in delivering high-quality solutions using Java, Python, Spring Boot, AWS, and modern frontend technologies. You will collaborate with cross-functional teams to build robust, high-performance applications while ensuring code quality, scalability, and security across the development lifecycle. Key Responsibilities - Develop high-quality software design and architecture using AWS, SQL, Spring Boot, Java, Spring MVC, JavaScript, Python and MySQL. - Collaborate with cross-functional teams to define, design, and ship new features. - Some hands on knowledge on React JS, Redux, HTML5, CSS3 - Some exposure to frontend testing tools like Jest - Ensure the performance, quality, and responsiveness of applications. - Identify and correct bottlenecks and fix bugs. - Maintain code quality, organization, and automation. - Implement security and data protection measures. - Conduct software analysis, programming, testing, and debugging. - Oversee the development of documentation throughout the software development life cycle. - Provide technical guidance and support to team members. - Stay up-to-date with emerging technologies and industry trends. - Optimize applications for maximum speed and scalability. - Participate in code reviews to maintain high code quality standards. - Contribute to continuous improvement by investigating alternatives and technologies. If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

Clean-slate design for complex scientific and engineering software This scientific and engineering software provider is seeking senior front-end developers to help guide their transition from a desktop-based ecosystem towards a modern web-native experience. This will include strategic and architectural problem solving as well as hands-on coding. You will be working alongside their current interface team and progressively take ownership of products over time. The current plan is to use React and Electron, but this isn t set in stone and part of the value you will be bringing is an understanding of technology and tool choices for performance, scalability and long-term maintainability. These are critical as this company provides their software to thousands of users world-wide and support critical industries. Requirements: Strong commercial experience building scalable front-end systems for complex software products, ideally in the scientific or engineering domains. Excellent JavaScript/TypeScript skills and good knowledge of web app and related frameworks such as React, Angular, and Electron. Good working familiarity with the component-based design philosophy and design systems. The offices are located in a newly refurbished buildings close to good road and rail links. Remunerations are strong with a good benefits package including 36 days of annual leave, company pension contributions matching up to 10% and an annual performance related bonus scheme. Another top job from ECM, the high-tech recruitment experts. Even if this job's not quite right, do contact us now - we may well have the ideal job for you. To discuss your requirements call ecm or email your CV. We will always ask before forwarding your CV. Please apply (quoting ref: CV27609 ) only if you are eligible to live and work in the UK. By submitting your details you certify that the information you provide is accurate.

My leading Digital client are looking for a talented and motivated individual to provide technical leadership in designing, developing and maintaining their digital initiatives and application development as they venture into offering more services for consumers across multiple digital channels. You'll ensure the current implementation of their digital solutions are in line with industry best practices and standards. Whilst also driving improvements in the design, processes & implementation to improve operational management, scalability, and extensibility. This is a newly created role for a growing business. An amazing opportunity! The following skills/experience is essential: Strong React Native development background Demonstrable experience delivering applications in both iOS and Android GraphQL and Restful APIs Solid understanding of the full mobile development life cycle Good communication skills Salary: Up to £95,000 + bonus + package Location: London (good work from home options available) If you are interested in this React Native App Lead position and meet the above requirements please apply immediately.

Role and Responsibilities This is an excellent opportunity for a capable web developer who enjoys owning features end-to-end in a modern, forward-thinking financial services business. We have our own proprietary applications, both back-office solutions as well as client facing. You will work on multiple projects including continuing to enhance our own CRM solution, migrating legacy WebForms functionality to clean services and a modern UI. You’ll work in a fast-paced, dynamic environment; you will not be a “cog in the machine.” You’ll be involved in every aspect of delivery - from requirements and design, to development, testing, deployment, documentation, and support, with a strong focus on scalability and maintainability. We are an extremely fast-growing business and as such, you will be required to adapt quickly to changes and business requirements. You must have a willingness to learn and adapt quickly in order to satisfy changes to business requirements. The job role will consist of the below responsibilities: Development CRM (WebForms/.NET/TSQL/BPM): Configure and extend our proprietary CRM using TSQL, BPM/workflow tools and C# Modernisation: Incremental modernisation of legacy applications using strangler pattern Client facing applications: Develop our customer self service portal and other front-end applications utilising React/Typescript and .NET 9 Web API Azure implementation: Assist in administering our cloud infrastructure (App Service/Functions, Azure SQL, Storage, Key Vault with Managed Identity, App Configuration, Private Endpoints, Application Insights) Quality/pipelines: Contribute to and set up CI/CD pipelines, unit/integration tests where required Testing: Conduct thorough testing and peer review of work items Data Analysis (SQL Server/TSQL) Write performance conscious, SARGable queries and implement appropriate indexing Monitor and apply performance fixes and other DB management tasks in Azure SQL Server hosted DB Technical Documentation Produce documentation for requirement gathering, code architecture and training guides Contribute to due diligence and penetration test readiness packs (architecture diagrams, data flows and controls) Support Triage and resolve support tickets relating to in-house applications from employees Support customer facing applications and address incidents utilising Azure Application Insights and application logs to identify and resolve issues Requirement Gathering: Communicate with stakeholders to establish clear problem statements and requirements Translate requirements into technical solutions with a focus on extendibility and minimising technical debt, considering future changes Accountability and Working Relationships Part of a small, highly motivated and productive development team Partners closely with CTO (hands on) Collaborates and in direct communication with operations, advice, compliance and administration teams to deliver appropriate solutions Accountable for delivering projects on time and to specification Working Environment and Hours: Office based in Doncaster (remote working can be available on occasions where required, however office based is preferred) Monday to Friday, 09:00-17:30. Hours can be flexible within reason and to ensure delivery of key milestones Benefits Competitive salary (dependent on experience) 24 days annual leave (plus bank holidays) Pension scheme Can be very flexible on working hours dependent on requirements and ensuring delivery of key milestones Opportunity to own meaningful projects end-to-end in a growing, entrepreneurial business Big opportunity to learn new emerging technologies (particularly AI), while at work Skills – Essential C# .NET (6+): Dependency Injection, Web API Working knowledge and experience of legacy .NET Framework 4.x and WebForms Microsoft SQL Server: Strong T-SQL, SARGability and indexing, performance tuning mindset TypeScript/React: Component reusability, state management Auth and Security: Securing SPA/APIs using flows such as OAuth2/OIDC Microsoft Azure (hands-on): VMs, App Service, Functions/Logic Apps, Azure SQL, Storage, Key Vault (Managed Identity), App Configuration, Application Insights; basic networking/private endpoints/DNS concepts CI/CD: GitHub Actions/Azure DevOps; environment-aware configuration and secret management Skills – Desirable Firebase: authentication, hosting, functions, Firestore React Native and building mobile apps Exposure to Azure AI Foundry or other AI orchestration (prompting/evaluation/workflows) Experience migrating legacy codebases to modern architecture Using Entra ID for authentication (OAuth2 Flow) Azure infrastructure set up including VNET/Private endpoint and DNS management and setting up secure landing zones Twilio API Industry knowledge of Financial services particularly retirement and custodial platforms Knowledge and experience working with the Seccl API Development Path Candidates slightly lighter in one area (like React or Azure) but strong in WebForms + C# + SQL and motivated to learn will be considered, provided they can show understanding of fundamentals and are willing to learn quickly. Comfortable operating across legacy and modern stacks in the same day. Job Type: Full-time Benefits:   Company events Company pension Free parking On-site parking   Ability to commute/relocate:   Doncaster DN4 5NL: reliably commute or plan to relocate before starting work (preferred)   Work Location: In person

About Us Juggle Energy is building the next generation of control, monitoring, and automation tools for industrial energy systems. Our platform brings together software, hardware, and distributed energy resources - including battery storage, smart inverters, and low-bandwidth networks - into a single, cohesive cloud-native system. We’re looking for a Mid-Level Software Engineer who’s keen to grow with us, get stuck into a variety of challenges, and help shape the future of our technology. About the Cloud Team The Cloud team is the backbone of Juggle’s web app. We build and maintain the services that power remote monitoring, device communication, time series storage, alerting, reporting, and customer-facing APIs. From distributed job queues and IoT messaging to InfluxDB pipelines and automated billing, our work supports real-time visibility and control across thousands of field devices. What You'll Be Doing You’ll work closely with a small, fast-moving team across the full stack of our platform. Expect to roll up your sleeves and get involved in: Build and maintain scalable backend services in Python (Django) and AWS. Design APIs and data models that serve both internal tools and customer-facing applications. Work with IoT messaging protocols (MQTT, HTTP, or similar) to communicate with field devices. Working with/creating React UIs and supporting infrastructure to provide rich interfaces to users. Help ingest, store, and query large volumes of time series data from InfluxDB Collaborate with the Hardware and Edge teams to support device provisioning, remote diagnostics, and secure firmware rollouts Investigate and resolve production issues in a fast-moving, real-world environment. Participating in project design, architecture reviews, and site-specific problem-solving. Supporting users of the Juggle platform and collaborating with customer teams to deliver real-world, reliable solutions. Tech We Use We don’t expect you to know everything on day one, but experience in some of the following will be a big plus: Languages: JavaScript/Typescript (Node.js, React), Bash, Python, SQL Platforms: Linux (edge/embedded), GitHub (CI/CD), Docker Data Systems: MySQL, InfluxDB, REST APIs, WebSockets  Architecture: Microservices, event-driven systems, infrastructure-as-code, observability/logging Projects You Might Work On Scalable monitoring tools to help energy asset managers and operations teams oversee large solar and battery portfolios APIs and dashboards that enable portfolio-level insights across thousands of distributed energy sites Systems for automated fault detection, triage, and recovery across low-connectivity environments Internal tools that support site provisioning and device lifecycle management Improvements to data pipelines and observability layers to ensure real-time system visibility at scale What We're Looking For Strong proficiency in Python and/or another server-side language. Comfortable working with SQL (especially MySQL) and designing relational schemas. Familiarity with cloud infrastructure (AWS preferred) and containerized services (Docker, ECS, etc). A solid understanding of REST APIs Familiarity with Django & React Hands-on attitude – you like solving problems, building test setups, and digging into data Bonus: An interest in renewable energy, industrial control systems, or infrastructure technology Bonus: experience with NextJS Why Join Us? Be part of a small, high-impact team building real-world energy solutions Opportunity to own your work and have real input in design and direction Access to cutting-edge tech and challenging, meaningful projects Learn and grow quickly by working directly with experienced engineers and founders Flexible work setup with room to grow your career as we grow the company

React Native Mobile Developer (12 Month FTC) Remote - 1 day a month on-site in Redditch, Birmingham 40,000 - 45,000 + Up to 4% bonus + 25 Days Annual Leave + Bank Holidays + Pension This is an excellent opportunity for a Mobile Developer to join a nationally renowned business at an exciting time of growth where you'll play a major part in upcoming development projects. This company specialises in facilities management and building maintenance services across the UK, covering a wide variety of industries. They provide solutions for engineering, cleaning, security, and project management, with a strong emphasis on operational efficiency. With new contracts and acquisitions, there's now a focus on expanding the Software division to meet increasing demand. In this varied role, you will be responsible for writing, testing, and deploying clean, efficient, and maintainable code for a range of software applications. You will collaborate with cross-functional teams, stakeholders, product managers, and designers to ensure user-friendly interfaces and functionalities. As a member of the development team, you'll be expected to have a strong understanding of modern software's to improve the software development process and product performance. The ideal candidate will have professional experience in mobile development, Software Engineering, or a related field. You'll be proficient in JavaScript and the React Native framework and have a strong understanding of app deployments in both the Play Store and Apple App Store. You'll also have a strong understanding of the software development life cycle (SDLC) and agile methodologies. Lastly, you will need previous experience with version control systems like Git. This is a fantastic opportunity for a Mobile Developer to join a market leader within their industry, providing great progression opportunities. The Role: - Write, test, and deploy clean, efficient, and maintainable code. - Collaborate with stakeholders and cross-functional teams. - Troubleshoot, debug, and upgrade existing systems. - Create and maintain technical documentation. - Remote with 1 day a month on-site in Redditch. The Person: - Professional experience in mobile development. - Proficient in JavaScript and React Native. - Strong understanding of app deployments (Play Store, App Store). - Strong understanding of SDLC and agile methodologies. - Familiar with version control systems (Git). Reference Number: BBBH(phone number removed) To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed. Reference Number: BBBH To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed.