46 full stack developer jobs found

  Job Title: Full Stack Developer (contract) Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This...

  Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position...

Full Stack Developer (React + Python/FastAPI) Healthcare Software Glasgow, Scotland (hybrid, 2 days a week in the office) | £350 375/day | 6-month contract, Outside IR35 | Start 20/10/2026 MindClon builds healthcare and medicolegal software that handles sensitive personal data under UK GDPR and clinical governance obligations. We're moving our clinical-records product off Firebase onto a new platform: a React Front End, a Python/FastAPI API and background worker, PostgreSQL, and self-hosted language and speech models. The same containers run on Google Cloud and in on-premise installations with no Internet access. You'll build this platform with a small engineering team and the Chief Technical Officer. This is a mid-level role. You'll own features from requirement to production, with design review and support around you. What you'll do Build features end to end: React and TypeScript in the browser, and FastAPI endpoints with Pydantic validation, business...

  Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires...

Contract - Senior Full Stack Developer (Expert) - Belfast Job description Job Title: Senior Full Stack Developer - Expert (contract) Location : Belfast. Travel to the Belfast office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35) Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte. The Role We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This...

Job Title: Senior Full Stack Developer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for Senior Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid understanding of...

Job Title: Full Stack Developer (contract) Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid understanding of...

Adrageous Media is looking for an experienced developer to take technical ownership of a multi-vendor marketplace connecting UK garden centres with customers. The platform brings together products from multiple garden centres into one storefront, with live stock and pricing, online payments, delivery and collection options, and dashboards for customers, merchants and administrators. Development is already underway. We need someone who can review the existing build, establish what is complete, identify any gaps and lead the remaining development through to launch. The role You will be responsible for: Reviewing the existing codebase, architecture and integrations. Building and completing the customer storefront, merchant portal and admin dashboard. Developing a shared product catalogue with listings from multiple sellers. Integrating POS data, including products, stock, prices and orders. Building reliable synchronisation processes with validation,...

Full job description IntellectEU is an international technology company focused on digital finance and emerging technologies. At IntellectEU we are on a mission to become the top-of-mind fintech company. We give rising talent and industry veterans the space to explore, launch ideas, and collaborate closely with our clients. Over the past two decades, we have earned our expertise in financial technology, executing on hundreds of complex integrations and co-creating new digital asset platforms alongside our clients. Location - London (UK). Type of cooperation - hybrid (2-3 days in the office). Responsibilities: Implement and operationalize core backend and frontend services with fault tolerance, security, and scalability. Build API-first services integrating blockchain networks, third-party provider solutions, and internal systems with strong consistency guarantees. Implement secure service communications using cryptographic signatures, key management,...

StoryTerrace | 1-2 days/week, fractional | Reports to CEO | London StoryTerrace is looking for a hands-on Fractional Head of Product with experience scaling B2C platforms.    The role  You'll set product direction across two live products - one established, one new to market - and direct the developer(s) who build(s) them. This is a judgment role where you'll be the person making the call on strategy, roadmap trade-offs and shaping what growing editorial products become. You’ll also advise on hiring needs.    About StoryTerrace StoryTerrace is on a mission to ensure that every life story is captured and passed on in a meaningful way. We're the leader in the ghostwritten life story market, having created more than 4,000 books with a network of 500 writers. At our core, we blend human storytelling with technology, using our proprietary platforms to create seamless digital experiences for clients and produce high-quality,...

Backend Developer — AI Data Services About The Role What if your C# expertise could directly shape the infrastructure powering the next generation of AI? We're looking for a Senior C# Full-Stack Engineer to build and optimize the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve their models. This is a fully remote contract role with meaningful, high-impact work — the kind where your code doesn't just sit in a backlog, it actively influences how AI systems learn and behave at scale. Organization: Alignerr Type: Hourly Contract Location: Remote Commitment: 20–40 hours/week What You'll Do Design, build, and optimize high-performance C# systems supporting AI data pipelines and evaluation workflows Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control Improve reliability, performance, and safety across...

Salary £450-£500 Outside IR35 City Taunton Province Somerset Country United Kingdom Postal Code TA1 Job Description About Scrumconnect Consulting   Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.   We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter.   Overview We are seeking an experienced Lead Technical Developer to provide hands-on technical leadership within a client delivery team. You will be responsible for driving engineering standards, code quality, and the technical...

Salary £450-£500 Outside IR35 City Taunton Province Somerset Country United Kingdom Postal Code TA1 Job Description About Scrumconnect Consulting   Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.   We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter.   Overview We are seeking an experienced Lead Technical Developer to provide hands-on technical leadership within a client delivery team. You will be responsible for driving engineering standards, code quality, and the technical...

Salary £450-£500 Outside IR35 City Taunton Province Somerset Country United Kingdom Postal Code TA1 Job Description About Scrumconnect Consulting   Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.   We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter.   Overview We are seeking an experienced Lead Technical Developer to provide hands-on technical leadership within a client delivery team. You will be responsible for driving engineering standards, code quality, and the technical...

IntellectEU is an international technology company focused on digital finance and emerging technologies. At IntellectEU we are on a mission to become the top-of-mind fintech company. We give rising talent and industry veterans the space to explore, launch ideas, and collaborate closely with our clients. Over the past two decades, we have earned our expertise in financial technology, executing on hundreds of complex integrations and co-creating new digital asset platforms alongside our clients. Location - London (UK). Type of cooperation - hybrid (2-3 days in the office). Responsibilities: Implement and operationalize core backend and frontend services with fault tolerance, security, and scalability. Build API-first services integrating blockchain networks, third-party provider solutions, and internal systems with strong consistency guarantees. Implement secure service communications using cryptographic signatures, key management, and zero-trust architecture...

IntellectEU is an international technology company focused on digital finance and emerging technologies. At IntellectEU we are on a mission to become the top-of-mind fintech company. We give rising talent and industry veterans the space to explore, launch ideas, and collaborate closely with our clients. Over the past two decades, we have earned our expertise in financial technology, executing on hundreds of complex integrations and co-creating new digital asset platforms alongside our clients. Location - London (UK). Type of cooperation - hybrid (2-3 days in the office). Responsibilities: Implement and operationalize core backend and frontend services with fault tolerance, security, and scalability. Build API-first services integrating blockchain networks, third-party provider solutions, and internal systems with strong consistency guarantees. Implement secure service communications using cryptographic signatures, key management, and zero-trust architecture...

Company Description At Data Intellect , we thrive on solving complex data challenges in high-stakes environments. We’re a team of engineers, problem-solvers, and collaborators who believe in pushing boundaries, not egos. If you're a seasoned C++ Developer ready to lead, innovate, and make an impact, we want to hear from you. Job Description As a C++ Developer at [DI], you will focus on developing Front Office Trading software, primarily working within the market data development teams. You will gain exposure to the full software stack, using modern development tools and concepts to deliver high quality, best practice software solutions. This will involve working on the end-to-end development of low latency software components written in C++. Project responsibilities will range from design, architecture and development of greenfield projects to maintenance, latency tuning and enhancements. Qualifications 4+ years’ experience of...

Waracle are looking for a Senior Mobile Security Developer (Inside IR35) for an exciting new 6-month initial contract joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.   We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.   This is a UK-based Inside IR35 Contract role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London or Edinburgh office or on client site. The Role As a Senior Mobile Security Developer, you will define squad-level technical architecture...

Waracle are looking for a Senior Mobile Security Developer (Inside IR35) for an exciting new 6-month initial contract joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.   We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.   This is a UK-based Inside IR35 Contract role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London or Edinburgh office or on client site. The Role As a Senior Mobile Security Developer, you will define squad-level technical architecture...

Salary £400-£425 Outside Ir35 City Taunton Province Somerset Country United Kingdom Postal Code TA1 Job Description   About Scrumconnect Consulting   Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter.   Role Purpose Join a blended agile delivery squad working on large-scale, secure digital services for a government client. As a Senior Developer, you will bring strong hands-on experience across both .NET and Python, contributing to...