senior java full stack developer jobs in London

Responsibilities Build fullstack features using React + Go/Node.js for Juniper and new product lines, shaping how these features work across web and mobile Collaborate with cross‑functional teams, including Data Science, to design product‑facing solutions and make decisions on trade‑offs and integration Implement scalable, maintainable solutions...

Build the core Xybern workspace, focusing on high-performance data visualization, collaborative reasoning tools, and audit-ready export systems.What you’ll doCollaborate with the founders to define and execute the AI Workspace roadmap.Bridge the gap between cutting-edge research and production-grade reliability.Own a substantial part of the system, from...

Build the Future of Cyber Security Learning at Scale Join TryHackMe as a Senior Full-Stack Engineer. We are a fast-growing, highly profitable cybersecurity training platform trusted by over 9 million learners and 1,000+ enterprise organisations globally, including Google, KPMG and the US Military. Whether you’re building gamified learning mechanics for...

Our Future Health is seeking a software engineer to develop full-stack applications using TypeScript and Node.js. You will collaborate with cross-functional teams to deliver high-quality software and participate in code reviews to uphold best practices.You will engage in problem-solving and debugging complex issues while staying updated on emerging...

What's the opportunity? Fin, now part of Salesforce, is on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey, from service, to sales, to ecommerce. Powered by our...

Senior Full-Stack Technical Lead (React/Next.js, Java/Spring Boot & Agentic AI) - Duration: 12 MonthsLocation: Toronto or London (Hybrid, 3x/week)OverviewOur Insurance Client's Enterprise Digital Strategy and Delivery team is seeking a hands-on Technical Lead to build enterprise digital products across front-end applications, backend services, integrations...

Reference: LTs28-1734218Senior Full Stack Software Engineer£100,000–£110,000 + benefitsUK-based | Hybrid – London 2 days per week Certus Recruitment is working with an ambitious UK fintech building a regulated stablecoin and digital payments platform.Ensure all your application information is up to date and in order before applying for this...

Wise is hiring a Senior Full-Stack Software Engineer for the Account Integrity team in London. You will own end-to-end development of customer-facing controls and robust fraud prevention features using Java and React.Join a fast-moving, international team focused on preventing financial crime, safeguarding customers, and delivering scalable money-transfer...

Grid Dynamics in Greater London is searching for a Senior Full-Stack Engineer to lead the development of AI-enabled tooling within their Production Management division. This role entails architecting AI solutions, modernizing engineering practices, and optimizing large-scale systems. Candidates should possess deep technical expertise in full-stack...

Are you passionate about building secure, scalable software and cloud infrastructure that supports critical services in production? Do you enjoy collaborating across teams, improving engineering practices, and helping others grow while delivering high-quality solutions? About Our Team Working within Information Security & Data Protection division, the...

We are seeking an experiencedSenior Full Stack Engineerto play a key role in the design, development, deployment and support of modern digital products and services. This is a hands-on senior engineering position that combines deep technical expertise with architectural leadership, mentoring and ownership of software delivery standards.Working within a...

Meet DeepLDeepL is a global AI product and research company focused on building secure, intelligent solutions to complex business problems. Over 200,000 business customers and millions of individuals across 228 global markets today trust DeepL's Language AI platform for human-like translation, improved writing and real-time voice translation. Founded in 2017...

Senior Full Stack Software Engineer (Typescript/Go) Join to apply for the Senior Full Stack Software Engineer (Typescript/Go) role at Birdie About Birdie At Birdie, we’re reimagining care for older adults. We’re building the technology that powers the future of home healthcare, empowering care teams with tools to deliver better, more dignified care, and...

IT Development Team Lead (Full Stack), Central LondonNot sure what skills you will need for this opportunity Simply read the full description below to get a complete picture of candidate requirements.An exciting Development Team Lead (Full Stack) role with a salary of £100,000 plus commission and career progression opportunities for a permanent role based...

Randstad Digital UK is seeking a skilled Full Stack Java/React Developer to design and implement enterprise-scale distributed applications and microservices. The role combines backend Java with modern React UI development, within a hybrid model.You will join a global technology team delivering secure, scalable solutions in a fast-paced environment. The ideal...

Senior Full Stack Developer (Kotlin, React) – Banking – London Daily rate: £500 – £700 (inside IR35) Duration: 6 – 12 months Hybrid: 3 days per week in office Start: ASAP We’re looking for a hands‑on engineer who thrives in a collaborative XP environment and enjoys working across the full stack. You’ll partner closely with the business, ship...

Contract: 12 months Rate: Up to £520 per day, Inside IR35 Working Pattern: Hybrid - 3 days per week in the London office We are looking for an experienced Senior Full Stack Developer to join a London-based engineering team responsible for designing, building and scaling strategic software products supporting a major Foreign Exchange (FX) trading...

Smart Spaces in the United Kingdom is seeking a talented full stack developer to build and maintain an enterprise-grade Meeting Room Booking and Desk Booking platform. The stack includes C# .NET 4.8 back-end APIs, a React front-end, a mobile app, and Microsoft Graph API integration for Outlook sync.You will deliver new features, improve performance, and...

ComXps is seeking Software Developer & Dev/Sec Ops or Programme Management Specialists for hybrid roles across London, Cheltenham, Manchester, or MK. DV clearance is required. Roles can be permanent or contract with 2–4 days per week in the office.Ideal candidates combine hands-on software engineering with cloud delivery, agile discipline, and strong...

Harrington Starr partners with a leading investment management technology firm to hire a Full-Stack Developer in London. This onsite permanent role involves hands-on work with front-office users to develop, support and enhance a business-critical investment platform.You will build features across the full stack, diagnose production issues, and drive...