senior java full stack developer jobs in London

Java Developer - Up to 55K We're working with a global technology consultancy delivering secure, large-scale digital transformation programmes across multiple industries. They're looking for a Java Developer to join a growing engineering team building modern, cloud-based microservices platforms. This role is ideal for a developer who wants to level up...

What you'll do Architect and build responsive, high-quality web apps in React and TypeScript, with Node.js/TypeScript on the backend Lead design and development of scalable, high-performance applications Apply best practice in security, accessibility and performance Build reusable components and libraries Run code reviews, testing and debugging to keep...

Full-Stack EngineerKings cross, London£85,000–£105,0005x PositionsWe're hiring Full-Stack Engineers to build Descrial end to end, from the database to the interface. Our clients trust us with confidential financial data, so security, tenant isolation, auditability and a polished experience are engineering constraints, not extras.You'll work in TypeScript...

Contract: Contract Location: Hybrid: London, Waterloo - 3 Days + 2 Days Remote Pay: Competitive Consultant: Joe Moore Exciting opportunity for a Fullstack Software Developer to join this global Energy company. This is an exciting time to join this world-leading Energy company as it evolves from a traditional Oil & Gas enterprise into a future-focused...

ABOUT QUANTUMLOOPAIQuantumLoopAI is transforming how patients access NHS primary care. Our AI-powered reception system, EMMA, serves millions of NHS patients, helping GP surgeries manage demand, reduce phone queues, and ensure patients get the right care at the right time. Backed by leading healthcare investors and working with NHS practices across England,...

As a Full Stack Developer, you will discover, design, build, cloud-based applications and prototypes that support discovery workYou’ll work across both front-end and back-end development, helping teams explore, test, and validate new technical approaches and digital services that underpin wider reform programmesDesign, develop, and test applications using...

Full-Stack Developer London | Fully Onsite | Permanent Harrington Starr is partnering with a leading investment management technology firmto hire a Full-Stack Developer. This is a hands-on role working closely with front-office users to develop, support and enhance a business-critical investment platform. The Role: Build features across the full...

Build scalable web applications across the full stack, from responsive front-end interfaces to APIs, databases, deployment, and client collaboration. 2-3 Years Remote Full-time Design, develop, and deploy scalable web applications for clients in India and overseas with clean architecture, responsive design, and optimized performance.Collaborate with clients,...

An exciting opportunity to join S64, the leading global alternative investments technology and manufacturing solutions partner to the wealth management industry. Headquartered in London, S64 has a global footprint with a presence across 9 locations in Europe, Asia and Australia.We are seeking Full Stack Software Developers with experience in React to join...

Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation in our DNA. We're trusted to help clients envision and build their businesses for the future – to run smarter today while adapting for tomorrow’s markets, customers, and communities....

About Ellipse Ellipse is an industry leader in collecting, analysing and delivering live sports performance data. We create innovative products and services across cricket, football, horse racing, rugby and tennis, helping fans, athletes and teams worldwide connect with the sports they love. The Role We're looking for a Full Stack Engineer to join our...

Salary: £65,000 - 105,000 per year Requirements 2+ years development experience Experience with modern front-end frameworks like React and NextJs Understanding of back-end programming concepts Previous experience of WordPress Strong vanilla JavaScript skills and front-end experience HTML/CSS3/SASS practices that support responsive design, progressive...

About MethodsMethods is a £100M+ IT Services Consultancy that partners with central government departments, agencies, and commercial organisations to deliver meaningful digital transformation. Established over 30 years ago and UK-based, we combine expertise in transformation, delivery, technology, and collaboration to create people-centred solutions that...

This is one of the world’s top algorithmic trading firms, looking for an experienced full stack developer to architect and design enhancements for global web-based systems using mainly Python and React.Working closely with teams across the firm – Algo, Business Development, Middle Office, Trading Tech – your code will impact business logic, provide...

Location: Remote (UK-based) - Occasional Travel to London Clearance: SC clearance; or eligible for SC As a Full Stack Developer, you will discover, design, build, cloud-based applications and prototypes that support discovery work. You’ll work across both front-end and back-end development, helping teams explore, test, and validate new technical approaches...

Java Full Stack EngineerAbout the RoleJoin a growing digital transformation and technology consultancy that delivers innovative solutions to a diverse range of organisations. Working as part of a collaborative, multidisciplinary team, you will help design and build modern digital products that solve complex business challenges and deliver meaningful...

Lead modernisation projects on web applications for science research platformDuxford, Cambridge; c£60,000 DoE + Benefits Take a leading role as a Senior Developer to realise innovative web products as part of the company's new digital transformation. The company is at the forefront of science research in the UK, and put high priority in having clear public...

We are hiring for this position to be based in Europe Praktika is an AI-native education company on a mission to deliver efficient, engaging language learning to billions of people worldwide. We're bridging the gap between traditional learning apps and human tutors through a fully automated tutorship experience powered by generative AI avatars. Since...

Looking for a detailed orientated engineer to join an existing engineering team, understand the architecture quickly, contribute production-quality code, troubleshoot distributed systems, and independently drive assigned deliverables through to deployment. You should have the following experience: MongoDB, Express.js, Angular, Node.js, C#/.NET Core 10+ and...

Full Stack Engineer (React / TypeScript / Java) Up to £85,000 + Benefits Hybrid Working London 2 Days per Week in Office We're working with a fast-growing WealthTech business that is transforming the way individuals and families engage with their finances through innovative technology and exceptional user experiences. They're looking for a Full Stack...