105 jobs found

Senior Software Developer - Epsom £55,000 - £60,000 Full-time, Permanent Hybrid/Remote (after probation) No sponsorship offered The Opportunity Join a fast-growing UK SaaS company delivering innovative solutions to the Public Sector. We're looking for a Senior Software Developer who thrives on solving complex technical challenges in a collaborative environment. You'll be instrumental in designing, developing, and maintaining our flagship communication platform - a mature, trusted product serving thousands of users across government and local authorities. What You'll Do Build and maintain high-quality software solutions that directly impact public services Collaborate with cross-functional teams to define and deliver technical solutions Drive best practices and participate in architectural decisions Optimise application performance, security, and scalability Mentor through code reviews and contribute to a culture of continuous improvement What We're Looking For Essential: 5+ years' software development experience (SaaS environment preferred) Strong proficiency in .NET, C#, JavaScript, and TypeScript Experience with modern frameworks (React/Angular/Vue.js and Node.js/.NET) Solid knowledge of SQL and NoSQL databases Familiarity with DevOps practices and CI/CD pipelines Excellent problem-solving skills and ability to thrive in a fast-paced environment What's On Offer Competitive salary up to £60,000 Hybrid/remote working (after 3-month probation) Health insurance (after 1st year) Pension scheme Flexible working hours Clear career progression to Lead Developer roles Continuous learning through mentorship and training Central Epsom office (5 minutes from station) Ready to Make an Impact? If you're passionate about technology and want to work on solutions that matter to millions of UK citizens, we want to hear from you.

Senior Software Developer Exeter, Devon (Hybrid) About Us At FDB (First Databank), we create and deliver the world's most trusted drug knowledge, enabling healthcare professionals to make critical decisions that improve patient safety, efficiency, and outcomes. Our solutions are embedded across hospitals, GP practices, pharmacies, and wider healthcare systems, supporting millions of patients every day.Our values guide everything we do: Better Together, Clear Expectations, Constantly Curious, and Health at the Heart. If these resonate with you, you'll feel right at home with us. The Opportunity We're looking for a talented software developer with expertise in C#, .NET and Agile methodologies to join us on a full-time, permanent basis, working in a hybrid manner with at least two days per week in our Exeter office.You'll be joining our pioneering organisation as we make a measurable difference in global healthcare and a team where innovation thrives and collaboration is second nature. We'll support you to deepen your technical expertise, explore emerging technologies and be part of a forward-thinking environment. What You'll Do As a Senior Software Developer, you'll be part of the team behind the next generation of FDB solutions. You'll craft intelligent, high-performance software that supports clinicians, patients and health systems around the world.Working alongside product owners, designers and domain experts, you'll use modern technologies and best-practice principles to deliver clean, scalable and secure code.Specifically, you will:- Apply and refine Agile methodologies to design, develop and deliver new features- Translate complex needs into elegant solutions- Analyse requirements, define specifications and manage delivery through to completion- Produce robust code and conduct peer reviews to maintain quality standards- Embed SOLID principles, TDD and refactoring as core practices- Leverage AI and automation tools to enhance productivity and innovation- Integrate sustainable thinking into development About You To be considered as a Senior Software Developer, you will need:- Experience in analysis and design, C#, MVC and the .NET framework- Experience with test automation, TDD, DDD, refactoring and unit testing techniques- Experience working within Agile and Scrum development environments- Knowledge of SOLID principles and T-SQL database design- Familiarity with JavaScript frameworks such as React- Proficiency with ORM tools such as Entity FrameworkYou will also need to have excellent communication skills and a collaborative approach. The Benefits - Competitive salary- 25 days' annual leave (with the option to buy up to 5 additional days)- Enhanced pension scheme- Health & wellbeing benefits, including HealthShield cashback and coaching- Flexible and hybrid working options- Electric Vehicle Scheme- Life assurance and permanent health insurance- Charity days and volunteering opportunities- and many more This is a hybrid role, with the expectation to be in the office at least two days per week. Apply Now You'll be working on projects that bring a positive impact to a vital industry. Through our software, more people can be supported, healthcare becomes more efficient, and results are improved across the board.So, if you're ready to develop software that improves lives as a Senior Software Developer, we want to hear from you. Other organisations may call this role Software Engineer, .NET Developer, Full Stack Developer, Developer, Software Developer, or Senior Application Developer.This vacancy is being advertised by Webrecruit. The services advertised by Webrecruit are those of an Employment Agency.

Senior Full Stack Developer - Active SC, Java, React Up to £550 per day (Inside IR35) London / Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Full Stack Developer with Active SC, to join a business-critical programme. Key Requirements: Proven experience working as a Full Stack Developer within the public sector Active Security Clearance (SC) Strong proficiency in Java and Spring Boot for Backend development Solid experience with React and Next.js for Frontend development Hands-on experience working with Cloud environments (AWS) Experience implementing CI/CD pipelines and familiarity with Docker / Kubernetes Skilled in API development and microservices architecture Strong technical and leadership capabilities Nice to have: Immediate availability Previous experience delivering greenfield development If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. Key Responsibilities: Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, scalable, and testable code. Troubleshoot and debug applications. Mentor junior developers and contribute to best practices. You will have: 5+ years of experience as a Full Stack Developer. Strong proficiency in C# .NET (Core) and React. Solid understanding of REST APIs, SQL/NoSQL databases, and version control (Git). Experience with cloud platforms such as Azure is a plus. Excellent problem-solving and communication skills.

Senior Full Stack Engineer Cybersecurity Scale-Up Fully Remote (Global) Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join a fast-growing, VC-backed cybersecurity innovator , recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide. They're building cutting-edge technology that helps organisations continuously understand how they could be compromised - and they're scaling fast. Now, they're looking for a Senior Full Stack Engineer to join their Client Facing Applications (CFA) team, where you'll help shape the customer experience for some of the world's largest enterprises. What you'll be doing: Designing and developing enterprise-grade SaaS features across backend and frontend systems Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) Creating data-driven dashboards and UIs with React, Next.js, and Chakra UI Translating product and design requirements into elegant, maintainable solutions Troubleshooting and optimising performance across the full stack Collaborating with product managers, designers, and engineers to deliver seamless client experiences Driving continuous improvements in engineering practices, tooling, and processes What they're looking for: 5+ years' experience building enterprise SaaS products (ideally in cybersecurity or data-heavy environments) Strong backend development with TypeScript, NestJS, Sequelize ORM, GraphQL, REST APIs Frontend expertise with ReactJS, NextJS, Typescript, Chakra UI Experience with MySQL and NoSQL databases Familiarity with messaging/event-driven systems (Kafka) Ability to work closely with designers (Figma) and translate complex business logic into intuitive UI/UX Problem-solver with strong debugging, troubleshooting, and optimisation skills Thrives in high-growth startup/scale-up environments, with adaptability and ownership mindset Bonus points if you have: AWS or Kubernetes experience Workflow engine knowledge (Xstate, Argo Workflows) Broader understanding of networking and infrastructure Why join? Competitive compensation & benefits A key role in a high-growth cybersecurity scale-up solving global challenges Cutting-edge tools and kit to help you succeed Endless growth opportunities - internal promotion is core to their culture Collaborate with cybersecurity experts and work on problems that really matter This isn't just another engineering role. It's your chance to build technology that protects enterprises from real-world attacks while shaping the future of offensive security at scale. Interested? Apply now - this one won't stay open for long.

Location: UK Remote Salary: £65 000 - £75 000 Sector: Full Stack Developer Type: Permanent We're looking for a Senior Full Stack Engineer to help shape and deliver innovative features for SaaS platforms. You'll work across the stack, contributing to both front-end and back-end development, ensuring a seamless user experience while maintaining technical excellence. This role involves close collaboration with Delivery Managers, Product Managers, and other Senior Engineers, as well as providing technical leadership to ensure high-quality, scalable solutions. Key Responsibilities: Deliver high-quality features for SaaS products, working across both front-end and back-end technologies. Provide technical leadership and support team members to deliver dependable estimates and evolve best practices. Collaborate with senior stakeholders to refine and execute the technical roadmap. Contribute to building a strong developer community by sharing knowledge and driving best practices. Actively participate in sprint planning and execution. Document technical approaches with a focus on testing, CI/CD, and scalability. Key Requirements: Frontend: Experience with React, Redux, and TypeScript. Backend: Expertise in Node.js microservices and familiarity with REST, GraphQL, asynchronous messaging, and JSON. Proficiency with NoSQL databases (e.g. MongoDB) and search technologies (e.g. Elasticsearch or Atlas Search). Strong understanding of automated testing, CI/CD pipelines, and integration/unit testing. Excellent communication, leadership, and mentoring skills in a remote, collaborative environment. Pragmatic problem-solving skills and adaptability to change. Passion for personal growth and improving ways of working. Desirable Skills: Familiarity with AWS services (SNS/SQS, S3, CloudFormation) and DevOps principles. Experience with Docker, AWS ECS, or Kubernetes. Knowledge of modern frontend frameworks/tools such as Vite and Next.js. Experience with end-to-end testing tools like Cypress. Backend frameworks such as Express and Apollo Server. Agile methodology experience in a fast-paced SaaS environment. Understanding of configuring scalable and customizable features for enterprise clients.

Senior Fullstack Engineer - Fintech Scale-Up (Java, Angular, Azure) Titles: Senior Fullstack Engineer Tech Stack: Java Spring Azure Angular Location: London (Hybrid - 2-3 days/week) Package: 85-95k + 20% bonus The Company: Growing fintech working with major banks on business banking products, providing solutions and serving thousands of businesses. The Role Hiring a Senior Fullstack Engineer to build scalable Java microservices for core banking platforms. Take ownership of key components and work with a talented team on high-performance financial solutions. What you'll do as a Senior Fullstack Engineer: Design and develop Java microservices (Spring Boot, Hibernate/JPA) for backend systems Build cloud-native solutions on Azure with containerization Implement RESTful APIs using Java integrated with banking platforms Develop full-stack features with JavaScript frameworks (Angular) Champion CI/CD, TDD/BDD, and engineering best practices Optimize Java applications for high-volume, high-availability systems What You Need 5+ years experience as a Software Engineer with strong Java/J2EE expertise (Java 8+, Spring, Hibernate) Frontend Angular experience (React may be considered) Cloud experience with microservices (AWS preferred) Docker and Kubernetes hands-on experience Fintech/regulated industry experience preferred Why Join? Java-focused role powering major banking platforms Scale-up energy with enterprise stability Comprehensive benefits + career development programs within software engineering Are you a Senior Fullstack Engineer with skills across Java and Angular? Apply now to discuss this opportunity in fintech.

Senior Software Developer - Hybrid - Warwickshire - C# .NET / Azure - £60,000 - £70,000 The Role An innovative technology company, delivering cutting-edge solutions to the supply chain sector, is seeking a Senior Software Developer to play a key role in the design, development, and enhancement of their core software products. You'll work across the full software development lifecycle, building robust, scalable, and high-performance systems using C#, .NET, SQL, and Azure. As a senior member of the team, you'll take technical ownership of key projects, contribute to architectural decisions, and help shape best practices around clean code, performance optimisation, and CI/CD. While this is a hands-on coding role, you'll also act as a mentor to mid-level and junior developers/ Including code reviews, encouraging modern development approaches and helping to upskill the wider team. You'll collaborate closely with other senior stakeholders, to deliver impactful, reliable software solutions. This is a great opportunity for an experienced developer who thrives in a technically challenging environment and wants to grow into a future Tech Lead, Software Development Manager and eventually CTO. Requirements Strong background in C# .NET development (ideally .NET 6 or .NET 8) Solid experience working with Azure cloud services (App Services, Functions, Storage, Service Bus, etc.) Good knowledge of SQL Server and data modelling Experience building and consuming RESTful APIs and integrating third-party systems Understanding of CI/CD pipelines, Git, and automated testing Ability to take ownership of technical delivery and guide best practices within a team Experience mentoring or supporting other developers Desirables Background in Supply Chain, Logistics, or Manufacturing systems Experience with microservices, containerisation (Docker/Kubernetes), or Event Driven Architecture Familiarity with React or another modern front-end framework The Company This company is an established leader in their field, providing market-leading software that supports critical operations for global clients. Their systems are built on modern technology stacks and trusted by major names across the industry. They're known for fostering a supportive, collaborative environment where developers are given real ownership and opportunities to grow. You'll benefit from modern tooling, continuous learning opportunities, and a stable, forward-thinking organisation that values technical excellence. Salary on offer is up to £70,000 DOE plus an annual discretionary bonus, 25 days holiday, private healthcare, clear training and progression plans plus much more. The role is hybrid based out of their Warwickshire office with 3 days a week in office, 2 days WFH. Apply Now If you're a passionate developer who wants to build high-quality software, influence technical direction, and mentor others in a supportive and forward-looking environment, this could be the role for you! Don't miss out, click apply now! Senior Software Developer - Hybrid - Warwickshire - C# .NET / Azure - £60,000 - £70,000 Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

Senior Full Stack Engineer - ASP.Net Core / C# / React - London (Hybrid - 3 days onsite) - £60k - £80k DOE Meraki Talent have partnered with a boutique investment client who are growing their Engineering team due to some great new client wins. Joining a cross functional team, you will deliver custom data warehousing and platform services to private market clients. This role goes far beyond just writing code. You will collaborate directly with senior stakeholders to understand business needs, translate them into technical solutions, taking ownership from concept through to delivery. You will play a key role in shaping technical direction and designing clean and robust systems. Technical Experience Full Stack Development experience across web applications Strong experience across their core products - ASP.Net Core, C#, React.js Knowledge of HTML / CSS / JavaScript / Typescript Deployment and support of solutions into Azure Experience of performance tuning when dealing with large data sets Strong stakeholder management Experience taking a product from inception through to completion. Please note: You must have full working rights in the UK and be able to commit to 3 days each week onsite in London.

This year the team has more than doubled in size and there's no signs of slowing!Following huge investment we continued to grow this new Software Engineering function in Southampton.This Senior Developer role would suit some looking to work in a Node.js, JavaScript & GCP environment!As Senior Developer you will Code Development: Writing clear, quality, tested, and well-documented code. Deployment & Maintenance: Managing and supporting multiple services across different environments. Skill Development: Continuous learning and adaptability to new technologies. Backend Focus with Frontend Exposure: Primary focus on backend development, with opportunities to learn frontend technologies. Legacy code is .net but all the cool new funky work will be JavaScript on Google Cloud Platform.As such, if you're a .net Developer local to Southampton and would like to transition to Node.js or already working with the stack, this is what you could be working with: JavaScript/Node GraphQL GCP Mongo Docker & Compose CI/CD React , Tailwind, NextJS Kubernetes Writing good quality code is the focus of this role, working on a hybrid basis with 3 days a week in their new office on the outskirts of Southampton.The salary for this Senior Software Developer role is up to £75,000 with benefits including 25 days holiday, bonus and pension.Apply now or contact Chris Lynes at Spectrum IT Recruitment for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Full Stack Developer (Space/Mission-Critical Systems) Oxford - Hybrid 2 days per week in office. £65000 - £95000 Must Have's - Must possess an EU or Five Eyes passport (UK, US, Canada, New Zealand, Australia).- Has worked Full Stack with Java, Python or C++ paired with JS/TS, ideally React.- Must have worked on Mission-Critical Systems within the space sector or adjacent (e.g., defence, aviation, telecommunications, or automotive). Your new company This leading Space Technology provider is seeking 2 experienced Senior Full Stack Developers to join their expanding team. With a proven track record of successful missions and partnerships with major space agencies and commercial operators worldwide, this company is at the cutting edge of innovation.You'll be part of a team that's pioneering technologies for on-orbit servicing with the end goal of making space exploration sustainable long-term. If you want to work for a business that combines purpose with advanced technology, this is the opportunity for you.The role is based from their rural Oxfordshire office, so own-transport will be required to work minimum 2 days per week in the office giving you access to secure projects. Your new role You'll help to develop mission-critical software (often greenfield) for ground systems supporting advanced space missions. You'll take ownership of designing and developing scalable backend services using modern programming languages, while also creating dynamic and responsive user interfaces with contemporary frameworks. You'll architect and optimise databases to ensure performance and reliability, and work with containerised applications using Docker and Kubernetes.The company control the systems they build, meaning developers can be intrinsic with the user and understand their journey to build a better product. You'll collaborate with scientists, engineers, and developers to identify promising ideas and guide their technical evolution. You'll participate in cross-functional design, implementation, testing, and deployment of their software toolkits so will have full lifecycle exposure.It's a business still in start-up/scale-up mode having been established less than 5 years ago, so a very exciting time to be joining at this stage of their evolution with significant investment and progression opps within the Development teams. What you'll need to succeed We're looking for candidates with a Bachelors, Masters or PhD Degree in a STEM or Computing discipline.Must have at least five years of full stack development using Java, Python or C++ for Back end Development and JavaScript on the Front End, ideally with the React framework.It is essential you've worked on the development of mission-critical applications within space, defence, aviation, telecoms, or automotive sectors.Additional expertise in container orchestration, CI/CD tools, SQL databases, and Git workflows will set you apart. Familiarity with AWS or Azure is desirable, as is knowledge of security best practices in software development. What you'll get in return You'll work for a technology focused company building innovative products. You'll receive private healthcare, life insurance, and relocation support if needed, plus holiday starting at 25 days rising to 28. You'll work in a state-of-the-art facility with a diverse, international team, parking on site and flexible working hours, including chance to work a compressed week (9 in 10 days). What you need to do now To find out more and to be considered for this position please apply directly, or contact Max Wilcock, Senior Business Director on .At Hays Technology, we are shaping the future of recruitment. The rapid adoption of cloud, which is making customer interfaces more engaging and creating a seamless engagement with businesses, means that from the foundation of your organisation up, software developers are critical to success. As the competition for talent grows, we're ready and waiting to help developers really make an impact on organisations, so talk to us today. We are Hays Technology. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

One of our valued clients are currently looking for a senior full stack engineer with 10 years (+) experience to join the team. About the company They are an early-stage B2B SaaS company, scaling a platform that leverages human expertise and modern AI tools to transform the way financial services are delivered. Their product is in advanced beta with live users, and they are preparing to scale to paid customers. They handle sensitive personal and financial data: trust, reliability, and stability matter as much as speed of iteration. The role We are looking for a senior, hands-on Full-Stack Engineer to join our small, highly experienced engineering team. You will work across the entire product, from Python services and APIs to React and TypeScript UI components. You will help deliver features end-to-end while raising technical standards across the codebase. This role suits someone who enjoys taking ownership and who cares deeply about engineering quality. You will help shape good engineering practices in a small but rapidly scaling environment. You will collaborate closely with Product and the other engineers. You will contribute to architectural decisions and ensure the platform remains robust, secure and ready for scale. Your influence can grow as the company grows. What you'll be doing Build across the stack Deliver features end-to-end across Python backend and React and TypeScript frontend. Write clean, maintainable and well-tested code with clear API contracts. Build UI components and data-driven front-end features with strong TypeScript foundations. Strengthen engineering standards Improve automated testing coverage across frontend and backend. Ensure CI and CD pipelines and quality gates support safe and frequent releases. Contribute to coding standards, documentation and review practices that lift the whole team. Shape architecture and technical direction Participate in decisions around performance, scalability, tenancy and cost control. Contribute to a roadmap that may include evaluating alternative technologies. For example, Rust for performance-critical components. Apply security-by-design principles across authentication, authorisation, data handling and audit logging. Help build a resilient and scalable platform Contribute to operational practices. For example, feature flags, safe rollbacks, incident handling, run-books, logging and monitoring. Improve performance across the stack. For example, SQL queries, React rendering and API throughput. Work closely with Product to scope work, plan release,s and make pragmatic build-versus-buy decisions. What they're looking for: Hard skills Python proficiency with any framework. FastAPI or Django are welcome. TypeScript expertise and strong React experience. Solid SQL experience. PostgreSQL is preferred but any advanced SQL background is welcome. Strong automated testing habits for unit, integration and end-to-end tests. Familiarity with GitHub workflows, CI and CD and standard developer tooling. Experience working in small teams and taking ownership of full product areas. Mindset A self-starter mentality. You take ownership and enjoy solving complex technical challenges. Passion for creating high-quality, maintainable solutions that scale. Enthusiasm for working in a client-led environment where user feedback influences development. A collaborative approach. You thrive in cross-functional teams while working autonomously. High personal engineering standards. You lead by example rather than authority. Nice to have Experience with Redis and Celery. Experience scaling multi-tenant SaaS applications. Experience with cloud platforms. (AWS, Google Cloud or Azure). Knowledge of containerisation (Docker or Kubernetes) Familiarity with SOC 2 readiness and security best practices. Experience with observability and monitoring. Background in fintech, lending or other regulated-data environments. Experience or interest in Rust or Go for performance-critical components. Experience designing or maintaining complex front-end state and data flows. This is an opportunity to bring your skills and experience into a small leadership team where your opinions are heard and welcome. This is also a chance to be part of bringing a game changing product to life This role is hybrid, 2-3 days in their offices at London Bridge Salary ranges from £80,000 - £125,000 with attractive EMI share options

This year the team has more than doubled in size and there's no signs of slowing! Following huge investment we continued to grow this new Software Engineering function in Southampton. This Senior Developer role would suit some looking to work in a Node.js, JavaScript & GCP environment! As Senior Developer you will Code Development: Writing clear, quality, tested, and well-documented code. Deployment & Maintenance: Managing and supporting multiple services across different environments. Skill Development: Continuous learning and adaptability to new technologies. Backend Focus with Frontend Exposure: Primary focus on backend development, with opportunities to learn frontend technologies. Legacy code is .net but all the cool new funky work will be JavaScript on Google Cloud Platform. As such, if you're a .net Developer local to Southampton and would like to transition to Node.js or already working with the stack, this is what you could be working with: JavaScript/Node GraphQL GCP Mongo Docker & Compose CI/CD React, Tailwind, NextJS Kubernetes Writing good quality code is the focus of this role, working on a hybrid basis with 3 days a week in their new office on the outskirts of Southampton. The salary for this Senior Software Developer role is up to £75,000 with benefits including 25 days holiday, bonus and pension. Apply now or contact Chris Lynes at Spectrum IT Recruitment for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. JBRP1_UKTJ

Senior .NET Developer - Manchester (Hybrid) Join high-performing development teams of 250+ building real-time, large-scale systems used by millions of users across the UK, North America and South Africa. This is a chance to work on business-critical software that directly drives user engagement and revenue. Hybrid role based in Manchester city centre (2 days per week onsite) Salary: up to £65,000 + bonus About the Role: The company is transitioning from monolithic architecture to microservices, with full application rebuilds and containerised deployments. As decisions get made at team level, you will have a say in the tech stack and development approach, with a strong emphasis on team collaboration. This is a stimulating environment where systems must operate in real-time, requiring robust event-driven architectures, streaming data pipelines, and reactive programming. You'll tackle complex scalability challenges across distributed systems, ensuring speed and reliability under heavy user loads. Security and compliance are central to the platform, so you'll be involved in building secure systems with strong authentication, encryption, and adherence to regulatory standards. What You'll Get to Work With: Modern microservices architecture powering high-volume systems Containerisation using Docker and Kubernetes for scalable deployments Cloud-native platforms and automated CI/CD pipelines Real-time performance engineering and distributed computing challenges Secure development practices with a focus on system architecture and compliance Key Responsibilities: Advocating TDD and solid development practices Providing technical leadership and peer development Peer code reviews and effort estimations Designing, building, and maintaining scalable software applications Writing clean, efficient, and maintainable code Debugging and resolving complex technical issues Collaborate with end-users to gather requirements and provide support What You'll Need: Experience working on large commercial systems Strong skills in C#, .NET Core, and Web APIs Database experience, working with both SQL and NoSQL Performance tuning and optimisation expertise Contact Philip Boltt at Lorien Global for more information. IND_PC1 Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

This year the team has more than doubled in size and there's no signs of slowing! Following huge investment we continued to grow this new Software Engineering function in Southampton. This Senior Developer role would suit some looking to work in a Node.js, JavaScript & GCP environment! As Senior Developer you will Code Development: Writing clear, quality, tested, and well-documented code. Deployment & Maintenance: Managing and supporting multiple services across different environments. Skill Development: Continuous learning and adaptability to new technologies. Backend Focus with Frontend Exposure: Primary focus on backend development, with opportunities to learn frontend technologies. Legacy code is .net but all the cool new funky work will be JavaScript on Google Cloud Platform. As such, if you're a .net Developer local to Southampton and would like to transition to Node.js or already working with the stack, this is what you could be working with: JavaScript/Node GraphQL GCP Mongo Docker & Compose CI/CD React , Tailwind, NextJS Kubernetes Writing good quality code is the focus of this role, working on a hybrid basis with 3 days a week in their new office on the outskirts of Southampton. The salary for this Senior Software Developer role is up to 75,000 with benefits including 25 days holiday, bonus and pension. Apply now or contact Chris Lynes at Spectrum IT Recruitment for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Senior Full Stack .NET Engineer (Contract) Edinburgh or London (Hybrid) 425- 450 per day - Inside IR35 6 Months - Start ASAP A leading UK pensions provider is seeking a Senior Full Stack .NET Engineer with ReactJS to help deliver scalable, high-performing systems as part of a major technology transformation. What you'll bring: Strong commercial experience with C#, .NET or .NET Core ReactJS Proven ability in system design and backend architecture Experience leading technical workstreams Expertise in database performance and optimisation Confident communicator, comfortable engaging stakeholders Familiarity with cloud (Azure) and CI CD practices Process: Technical test One-stage interview with Tech Lead If you're a seasoned engineer ready to make an impact in a modern, collaborative environment - apply now. For more information, please contact Cathcart Technology and ask for Andy.

2x Senior .NET Developers - Public Health Job Title: .NET Developer Location: 1-2x/week in Leeds Day Rate: 500/day Inside IR35 Duration: Until March 2026 NHS or Central Government experience is ESSENTIAL Brio Digital are supporting a HealthTech consultancy who are currently looking for 2x .NET Software Engineers . You'll be working on a national-level programme supporting an ongoing digital transformation project. What You'll Do Build and maintain robust APIs and web applications using .NET and React Collaborate with cross-functional teams to deliver modern, Azure-hosted solutions Develop clean, testable, and maintainable code across the full stack Integrate with complex healthcare data systems and APIs Support continuous improvement across architecture, tooling, and CI/CD pipelines Participate in design reviews and mentoring within an agile delivery team What You'll Bring Solid C#/.NET Core experience in production systems Proficiency with React and TypeScript Strong experience with Microsoft Azure (App Services, Azure Functions, Azure DevOps, etc.) Exposure to healthcare, NHS, or data integration environments Understanding of RESTful APIs , microservices , and unit testing Experience with Git , Azure DevOps Pipelines , and agile delivery practices Strong problem-solving and communication skills Nice-to-Have Knowledge of HL7/FHIR or other healthcare data standards Experience with serverless architectures or containerisation (Docker, AKS, etc.) Familiarity with Terraform or other IaC tooling Interest in improving public sector tech capability Apply now or email

Senior Developer Leading Design & Build Workspace Specialist London A market-leading design & build firm, established for 20+ years and recognised as the UK s top name in high-end office fit out, is looking for a highly skilled Senior Developer to join their growing IT function. With a central London headquarters and regional presence across the UK, the business delivers future-focused workplaces for landlords, co-working operators and end-user clients - creating inspiring spaces that help people do their best work. As part of a dynamic team of designers, builders, strategists and technologists, you ll play a pivotal role in shaping and advancing the internal systems that underpin every project, pitch and client experience. This is an opportunity to own and evolve a mission-critical internal platform, influence technical direction, and help scale a high-performing development function. The Role: You ll lead the development, maintenance and optimisation of the company s core business systems, built in PHP (Laravel) with a PostgreSQL backend, alongside managing several WordPress -based websites. Working closely with stakeholders from across the organisation, you ll ensure the reliability, performance and evolution of the systems that drive daily operations. You ll also help guide the future technical roadmap, support junior developers as the team grows, and take ownership of engineering best practice, system architecture and deployment workflows. Key Responsibilities: Lead development and enhancements on internal business systems built with Laravel, PostgreSQL and Azure blobstore. Provide ongoing maintenance, debugging and performance tuning of applications and web environments. Deliver technical support to internal users, including managing high-pressure or time-critical issues. Maintain and evolve WordPress websites (plugins, themes, security hardening). Administer and troubleshoot Linux-based hosting environments. Build, deploy and manage containerised applications using Docker. Configure and maintain Nginx for optimal performance and security. Support firewall configuration and troubleshooting across APIs, services and repositories. Manage Git-based version control and enforce workflow best practices (branching, PRs, code reviews, release tagging). Document architecture, workflows and development processes. Collaborate with IT and business stakeholders to improve system efficiency and interaction. Contribute to major system upgrades, migrations and new feature rollouts. Mentor junior developers and support team growth. Required Skills & Experience: 5+ years experience in software development with strong PHP (Laravel) and PostgreSQL expertise. Strong understanding of ERP/CRM system functionality within business environments. Deep knowledge of Linux systems, shell scripting and performance tuning. Hands-on experience with Docker for development and production environments. Strong knowledge of Nginx configuration and management. Understanding of DNS, domain registrars and record configuration. Experience with firewalls and network security. Advanced Git workflow experience, including CI/CD pipelines. MVC architecture, RESTful APIs and modern back-end best practice. Experience with WordPress development and admin. Excellent troubleshooting skills across the stack. Clear, confident communicator able to engage non-technical users and manage challenging conversations. Calm and professional under pressure. Knowledge of Power Platform, PowerApps and data migration tools (ADF, SSMA, SSIS). Understanding of API integrations and data transfer topologies. Desirable: Experience within design, construction, architecture, or related built-environment industries. Experience with Docker orchestration. Knowledge of front-end frameworks such as React or Vue. Degree in Computer Science or related field. Understanding of business workflows from lead generation through project delivery. A creative, solutions-driven mindset and the ability to inspire confidence in others.

We are seeking a senior, creative UI/UX & Full Stack Developer to join a client in The City of London. This role will focus primarily on UI/UX design and development (60%) while also contributing to backend and full-stack solutions (40%). The successful candidate will work closely with business stakeholders and developers in a small Agile team, contributing to both greenfield projects and enhancements to existing systems. This is an exciting opportunity for someone passionate about user experience, design, and intuitive interfaces, with the ability to complement their UI skills with strong full-stack development knowledge. Key Responsibilities UI/UX Focus (60%) Design and implement modern, responsive user interfaces using React, NextJS, or Blazor. Create wireframes, mockups, and prototypes using tools such as Figma to demo solutions to business stakeholders. Ensure high-quality user experiences, accessibility, and performance across applications. Collaborate with business analysts and product owners to translate user stories into intuitive, functional designs. Participate in usability testing and iterate on feedback to improve interface quality. Full Stack / Backend Focus (40%) Develop, test, and maintain microservices and backend APIs using C#, .NET 8, Python, and RESTful Web APIs. Implement integration and unit tests as part of the development process. Contribute to DevOps practices including CI/CD pipelines, containerization (Docker/Kubernetes), and cloud deployment (Azure/AWS). Support production systems and troubleshoot technical issues when needed. Agile Collaboration Participate in Scrum ceremonies and contribute to planning, stand-ups, reviews, and retrospectives. Work closely with cross-functional teams to achieve project goals and milestones. Act as a problem solver and team player, balancing multiple priorities in a fast-paced environment. Skills & Expertise Strong hands-on experience in UI/UX development with React, NextJS, or Blazor. Proficient in wireframing and prototyping tools (Figma, Adobe XD, or similar). Solid experience in full-stack development using C#, .NET 8, Python, RESTful APIs, and microservices architecture. Familiarity with cloud platforms (Azure or AWS) and containerization technologies. Experience with databases (SQL Server, AWS RDS, MongoDB or other NoSQL). Knowledge of DevOps tools such as Azure DevOps, Jenkins, or Octopus for CI/CD. Understanding of Agile methodologies and collaborative software development practices. Bonus: experience in financial services or familiarity with trading systems, FIX protocol, or FX products.