18 full stack developer jobs found

Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Birmingham - flexible remote working options available - Candidates UK wide can be considered Rate: £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front-end capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need very strong React skills with Core C# (recent) experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design activities....

Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Birmingham - flexible remote working options available - Candidates UK wide can be considered Rate: £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front-end capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need very strong React skills with Core C# (recent) experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical...

Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front-end capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need very strong React skills with core C# (recent) experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical...

Senior Full Stack Developer (React/C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/Front End capability. Strong C#/.NET Back End capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need very strong React skills with core C# (recent) experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both Front End and Back End technologies while contributing to data migration, integration, and technical...

Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Birmingham - flexible remote working options available - Candidates UK wide can be considered Rate: £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front-end capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need very strong React skills with Core C# (recent) experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to...

Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: £500 per day - Outside IR35 Senior Full Stack Developers. Strong React/front-end capability. Strong C#/.NET back-end capability. Ability to operate across the full stack where required. Overview We are seeking experienced interim Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. You will need very strong React skills with core C# (recent) experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing...

Outside IR35 MindClon builds healthcare and medicolegal software that handles sensitive personal data under UK GDPR and clinical governance obligations. The successful candidate will work across the whole stack - React and TypeScript in the browser, TypeScript services and PostgreSQL behind them - on a new clinical-records product and a live clinical transcription product, alongside a small engineering team and the Chief Technical Officer. This is a mid-level role. You should be comfortable owning a feature from requirement to production with review and support around you, rather than designing the platform on your own. Main Duties and Responsibilities Build and ship features end to end - React and TypeScript in the browser, TypeScript services and workers on the server, and the data layer beneath them. Write and review SQL, schemas and migrations for clinical and case data. Cover your work with automated tests - unit, integration and end-to-end - and keep the CI...

Senior Full Stack .NET Developer - Contract C# | .NET | ASP.NET Core | Vue 3 | TypeScript | REST APIs £400 - £450 per day | Outside IR35 | Remote UK | Contract We're looking for an experienced Senior Full Stack .NET Developer / .NET Contractor to join a global SaaS engineering environment, working across backend services and a modern web application. This is a UK-based remote contract working with an international engineering team across the UK, New Zealand, US and Canada. You MUST be UK based to be considered. The Role You 'll be hands-on across C#, .NET, ASP.NET Core Web APIs, Vue 3 and TypeScript, developing new functionality and enhancing an established SaaS platform. You 'll work across: C# / .NET / ASP.NET Core / .NET 5+ Vue 3 / TypeScript / Composition API / REST APIs & backend services Automated testing & maintainable code GitHub & modern development practices AI-assisted development tools such as...

Senior Software Engineer Full Stack Developer (Frontend most important) TypeScript or Express.js / Kotlin or Springboot / AWS Initial 6 Month Contract Fully Remote (UK Based) £525-550 per day, Outside IR35 Active SC required We're working with a UK Consultancy client who are putting a team together to deliver a high-profile Cloud-Native Government program. We need Senior Software Engineers who hold active SC Clearance, and have good Full Stack experience with Kotlin, Spring Boot (Java), Express.js or TypeScript, AWS and Terraform or AWS CloudFormation. The Frontend experience is preferable. Urgent Contracts starting ASAP, fully remote, paying up to £550 per day, Outside IR35. Initial 6 month engagement with long term extensions. Tech stack: Frontend (Frontend is the more important end of the stack for this role) Building UIs using Express.js and TypeScript GDS standards Nunjucks Integrating with the backend services Backend...

Fullstack Developer| £550-£650 per day | Outside IR35 | 6 Month Initial Contract London/Hybrid A leading specialist insurer is seeking a Senior Full Stack Developer to join a strategic modernisation programme within its Digital Distribution function. You'll play a key role in reducing technical debt across business-critical broking platforms, helping to modernise Legacy applications, improve release quality, and deliver new functionality across a mixed Azure and on-prem environment. This is a hands-on engineering role suited to someone who enjoys solving complex technical challenges whilst helping shape engineering best practices across the wider team. This position is Front End focused, with approximately 70% Angular development and 30% .NET Back End work. Key Responsibilities Design, develop and enhance modern Angular applications and user interfaces Build and maintain .NET APIs and Back End services Refactor Legacy code and contribute to technical debt reduction...

Senior Product Engineer - Python/React | £650/day Outside IR35 Up to £650/day | Outside IR35 | 6 months | Shoreditch, London I'm working with an exciting early-stage HealthTech business that is building a highly ambitious consumer healthcare product from the ground up. They have an exceptionally experienced founding team with a strong track record of building, scaling and exiting successful technology businesses , and are now growing the engineering team at a key stage of the company's journey. They're looking for an experienced Product Engineer who wants genuine ownership - working closely with the founders and engineering team to take problems from initial idea through to production and customer feedback. This isn't a ticket-driven engineering role. They need someone who enjoys building, shipping and making product decisions . Key experience: Excellent Python engineering skills Async systems/data processing React and comfortable working across the full stack...

About Us: Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery. We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact. Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors. Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz. Our services span the full digital delivery life cycle,...

Our Story Be a part of something bigger... Radar Healthcare is dedicated to improving patient safety by bringing together the expertise of healthcare professionals and the power of intuitive software. Our innovative platform has been developed in partnership with industry experts to ensure organisations always meet regulatory standards – making it easier than ever for healthcare providers to deliver top-quality care to their patients. We’re on a mission to become a world-leading health-tech pioneer, and we know that we can only achieve this with the help of talented individuals like you. If you’re passionate about improving healthcare outcomes and want to work in a team of like-minded individuals, we invite you to join us on our journey. So if you’re up for an exciting challenge and want to be part of a team that’s making a real impact, we’d love to hear from you! Our Values At Radar Healthcare, we are all proud of our values-led, open, supportive and inclusive...

Our Story Be a part of something bigger... Radar Healthcare is dedicated to improving patient safety by bringing together the expertise of healthcare professionals and the power of intuitive software. Our innovative platform has been developed in partnership with industry experts to ensure organisations always meet regulatory standards – making it easier than ever for healthcare providers to deliver top-quality care to their patients. We’re on a mission to become a world-leading health-tech pioneer, and we know that we can only achieve this with the help of talented individuals like you. If you’re passionate about improving healthcare outcomes and want to work in a team of like-minded individuals, we invite you to join us on our journey. So if you’re up for an exciting challenge and want to be part of a team that’s making a real impact, we’d love to hear from you! Our Values At Radar Healthcare, we are all proud of our values-led, open, supportive and inclusive...

Full job description Our Story Be a part of something bigger... Radar Healthcare is dedicated to improving patient safety by bringing together the expertise of healthcare professionals and the power of intuitive software. Our innovative platform has been developed in partnership with industry experts to ensure organisations always meet regulatory standards – making it easier than ever for healthcare providers to deliver top-quality care to their patients. We’re on a mission to become a world-leading health-tech pioneer, and we know that we can only achieve this with the help of talented individuals like you. If you’re passionate about improving healthcare outcomes and want to work in a team of like-minded individuals, we invite you to join us on our journey. So if you’re up for an exciting challenge and want to be part of a team that’s making a real impact, we’d love to hear from you! Our Values At Radar...

Full Stack Software Engineer (.NET) Location: Leeds/London (2 days per month onsite) Rate: £500 per day Engagement: Contract IR35 Status: Outside Start Date: ASAP Duration: 6 months with high likelihood of extension Overview Brio Digital is supporting a major NHS digital transformation programme via a delivery partner and we are looking for experienced Full Stack .NET Developers. You'll be working on the development and enhancement of critical healthcare applications, helping deliver scalable, secure, cloud-native solutions that directly support NHS services and patient outcomes. This is an excellent opportunity for developers who enjoy working across the full stack, with a strong Microsoft technology background and modern front-end expertise. Software Engineer Key Responsibilities: Design, develop and maintain enterprise-grade applications using .NET technologies Build and enhance responsive front-end applications using React and TypeScript Develop secure RESTful...

Full Stack Software Engineer (.NET) Location: Leeds/London (2 days per month onsite) Rate: £500 per day Engagement: Contract IR35 Status: Outside Start Date: ASAP Duration: 6 months with high likelihood of extension Overview Brio Digital is supporting a major NHS digital transformation programme via a delivery partner and we are looking for experienced Full Stack .NET Developers. You'll be working on the development and enhancement of critical healthcare applications, helping deliver scalable, secure, cloud-native solutions that directly support NHS services and patient outcomes. This is an excellent opportunity for developers who enjoy working across the full stack, with a strong Microsoft technology background and modern Front End expertise. Software Engineer Key Responsibilities: Design, develop and maintain enterprise-grade applications using .NET technologies Build and enhance responsive Front End applications using React and TypeScript...

Java Developer VACANCY: Freelance Java Developer - Outside IR35 Remote (UK-based) | Occasional travel to Farnborough or Hammersmith £550-620/day | Contract until 2026 We're looking for a freelance Java Engineer to join a long-term project building scalable, cloud-native platforms within the Financial Services Payment industry. This role is outside IR35, fully remote (UK only), with occasional site visits in Farnborough or Hammersmith. This isn't a role for task-takers - we want someone who thinks like an engineer, takes ownership, and thrives in a proactive, collaborative environment. Tech Stack & Skills ✓ Java (Spring Boot, Microservices) ✓ AWS (Java Spark, EMR, Lambda, native AWS DBs) ✓ Kubernetes & EKS ✓ Strong understanding of cloud infrastructure & distributed systems ✓ Vocal, self-driven, takes ownership end-to-end Nice to Have...