1 to 25 of 101 Full-Stack Engineer Jobs in London

with an early-stage UK tech startup focused on using data and AI to optimise and accelerate the design of clinical trails. Full-Stack Engineer – Founding Team (London, Full-Time) Role: Full-Stack Engineer – Founding Team … Location: London, UK (on-site/hybrid) Type: Full-time, Senior/Experienced About the Role We’re seeking a Full-Stack Engineer to join a dynamic early-stage deep-tech venture as one of the founding engineers. You will work ...

Full-Stack Engineer – Workflow & Systems Integration (SC Cleared) - AI Start up Role: Full-Stack Engineer – Workflow & Systems Integration Type: Permanent Location: London (Hybrid – on-site commitment expected during early stages) Clearance: Must be eligible for SC Clearance Sector … data environments) Compensation package : Opened to conversations + equity in the organisation Overview An early-stage AI start-up is seeking a Full-Stack Engineer to build the internal backbone underpinning AI-driven workflows, RMS integrations, and secure data operations. This is a hands ...

Full-Stack Engineer (React/Python/AI) Location: London (Hybrid) Salary: £100,000 + Equity About the Company: An early-stage, well-funded tech startup building AI-powered software to help businesses make smarter decisions and improve operational performance . The team … mission-driven, giving you the chance to shape both the product and engineering culture. The Role: We’re looking for a Full-Stack Engineer to join a fast-moving, collaborative team. You’ll work across the stack — crafting sleek UIs in React ...

Senior Full-Stack Engineer (Java & Python) We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated, enterprise environment. This role … sits at the intersection of data engineering, full-stack development, and business engagement , working closely with stakeholders and external vendors to design and deliver robust, scalable technology solutions aligned to a strategic roadmap. What youll do Design, build, and maintain reliable, scalable data pipelines supporting complex ...

Senior Full-Stack Engineer FX e-Trading London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build … delivery, strengthen code quality, and enhance developer experience. 4 days onsite in London. PAYE/Umbrella options. Lead design and development of full-stack features: React/TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven ...

Senior Full-Stack Engineer – FX e-Trading – London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build … delivery, strengthen code quality, and enhance developer experience. 4 days onsite in London. PAYE/Umbrella options. Lead design and development of full-stack features: React/TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven ...

Senior Full-Stack Engineer (Java & Python) We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated, enterprise environment. This role … sits at the intersection of data engineering, full-stack development, and business engagement , working closely with stakeholders and external vendors to click apply for full job details ...

Role: Software Engineer - Full-Stack - TypeScript, Node.js Location: London Working Model: Hybrid - 3 Days Salary: Up to £99,000 Ready to build tech that actually means something? This team is powering the next generation of electrification — EVs, solar, batteries, heat pumps, smart devices … want ownership, modern tech, and work that actually matters? This one’s worth a serious look. Why This Role Rocks You work full-stack: TypeScript, Node, React, React Native (bonus). You ship features end-to-end — design → build → deploy → monitor. You join a proper engineering ...

Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding) to help build … define, and scale. 💰 Comp: Up to £100k + strong early stack equity package 🧑 💻 What you’ll do Full-stack engineering, backend-leaning (Next.js FE + BE, Node.js, TypeScript, legacy Python) Collaborate with product & CEO to shape the roadmap Help guide a small, senior team ...

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Contract Full-Stack Engineer (Frontend/UI Focus, Typescript, AI-Curious) 🧠 Minimum of 2 years experience 🏢 London: 1-3 days a week/also UK Remote friendly | Seed-Stage AI Startup | £400–£600 per day depending on exp (could be flex for exceptional candidates … funded seed-stage startup who are one of the fastest growing AI startups in Europe, who are looking to make multiple Contract Full-Stack Engineer hires, with a strong frontend/UI focus, to help shape, ship and influence the core product, bridging ...

Senior Full-Stack Engineer FX e-Trading London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build ...

title: Senior Full-Stack AI Engineer Location: GSK HQ Team: Enterprise AI - Data Science UK Contract: 6 months Overview GSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. … uniting science, technology, and talent to get ahead of disease together. Role Overview GSK are seeking a Senior Full Stack AI Engineer with a strong focus on frontend engineering, user experience and product delivery. You will lead the design and implementation of immersive, interactive ...

Role: Senior Full Stack Software Engineer Location: London, Manchester or Bristol (Hybrid) Length: Initial 6-month contract Rate: £650-£700 per day (Inside IR35) Clearance: Active SC clearance is preferred, or candidates must be SC-eligible We're supporting a major UK Government department … that's looking for a Senior Full Stack Software Engineer to help design, build, and run critical digital services. This is a hands-on role suited to someone who enjoys technical ownership, mentoring others, and improving the resilience and security of live systems. ...

Java/React Duration: 12 months Pay: £759-900/day (PAYE/umbrella) Location: London (hybrid working – 2 days onsite) Senior Full-Stack Engineer – FX e-Trading (React/TypeScript + Java) About the role Help architect and build … coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What you’ll do Lead design and development of full-stack features: React/TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven, and microservices ...

Typescript Full Stack Engineer – Consultant Salary: £45,000–£55,721 base plus benefits, perks, and healthcare options! Base Locations: London, Manchester, Newcastle or Glasgow (Hybrid working - operate out of any base!) Organisation : Global IT Consultancy Are you a Full Stack … apps and trained mental health champions Ready to shape the next generation of digital excellence? If you’re a talented full stack engineer who wants to build innovative products, grow your skills and make a real impact, we’d love to hear from you. ...

average once per week), and were happy to discuss flexibility to make this work for you. We are looking for a Lead Software Engineer who will be responsible for the design, development, and deployment of high-quality software solutions. This role involves leading a team of engineers … questions & early-stage hiring eg cv screening or technical assessments when required About You Professional knowledge and experience Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Significant hands-on experience with .NET and React. Strong understanding of Agile and DevOps ...

Senior Full Stack Engineer | Node.js & SQL | Data‐Heavy FinTech Platform Salary: £100,000–120,000 circa Hybrid: 2 days in‐office (Mondays & Wednesdays, non‐negotiable) in Victoria area, London 90% backend (Node.js) You’ll join a 50‐person, London/US SaaS scale … choice of quality hardware A great role here and the chance to work with an awesome team. Apply ASAP! Senior Full Stack Engineer | Node.js & SQL | Data‐Heavy FinTech Platform ...

with the design team, customers, and the CEO/CTO Build and maintain both front-end and back-end components of features (full-stack ownership) Work with the design team to refine product specifications and user experience Contribute to technical architecture decisions and implementation patterns across … product. We are looking for We would love to hear from you if you have: 3–5 years’ experience as a full-stack engineer in a fast-growing product-led company (experience as a founding engineer or engineering lead is a plus ...

Title: Full Stack Developer - Payment Lead Location: London, UK - Hybrid Job Type: Contract - Inside IR35 Note: No Sponsorship JD: · Experience in overall payment ecosystem, Integration and Maintenance, reconciliation, payment policies and ...

Greetings from Ubique Systems!!! We are looking for a Fullstack Developer with Payment integration experience for one of our customer who has an expertise in:- Experience in overall payment ecosystem, Integration and Maintenance, reconciliation, payment ...

🚨Senior Fullstack Developer 🚨 🧑 💻PHP - Laravel-Vue.js 🧑 💻 📍UK Remote📍 💷 up to £70k + Benefits💷 Hugely Successful Data PaaS Consultancy based in the UK who are undergoing an exciting period of growth, who work with some of ...

🚨Senior Fullstack Developer 🚨 🧑 💻PHP - Laravel-Vue.js 🧑 💻 📍UK Remote📍 💷 up to £70k + Benefits💷 Hugely Successful Data PaaS Consultancy based in the UK who are undergoing an exciting period of growth, who work with some of ...

security Collaborate cross-functionally with engineering, product, and AI teams to deliver high-impact features About You We’re seeking an experienced full-stack engineer with a strong foundation in Python back-end development and the versatility to work across the stack. … Docker, and DevOps workflows Experience designing or integrating authentication and authorisation systems (e.g., OAuth2, JWT) Success Metrics Deploy secure, scalable, and maintainable full-stack systems and LLM applications that deliver measurable business value Maintain low latency, high system uptime, and strong performance across APIs ...

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