senior java backend developer jobs in London

Join to save Junior Java Developer at Webologix Ltd/ INCDirect message the job poster from Webologix Ltd/ INCKey Skills:Strong hands-on experience in Java and backend developmentGood experience with Apache Kafka and event-driven architectureStrong understanding of Spring Boot, REST APIs, and microservicesExperience working on end-to-end, real-world...

Job DescriptionSenior Java Consultant. £45-65k pa. Central LondonWe have an exciting opportunity for a Java Specialist to join our rapidly-growing Oracle CX Cloud Practice, working on cutting-edge projects. You will be working in a wider team, and will be striving to deliver elegant, user-friendly solutions that surpass the expectations of the customer....

Join our expanding engineering team!We're hiring a permanent Senior Backend Engineer to join our Asset Sales group as we scale one of the most important parts of M-KOPA's FinTech platform. Build distributed, event-driven microservices and help shape what AI-native engineering looks like at M-KOPA.The Impact 💚Your code will directly power the systems that...

Senior C# Backend Engineer £550 - £650 per day London | 2 days per week onsiteThis is an opportunity to join a greenfield platform programme focused on building a modern identity and authorisation capability from the ground up. You will help shape core platform services that will be consumed across a wider ecosystem of AI-native applications, data...

DescriptionFuse is an AI-first energy company on a mission to make energy abundant and affordable, fast. We combine first-principles thinking with cutting-edge technology to build a radically better energy system.We've raised over $200M from top-tier investors including Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, 20VC, Hummingbird and...

About ARQARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges,...

Aalyria is a leading technology company that supplies laser communications technology and temporospatial software-defined networking platforms to the aerospace industry. With technology acquired from Google, Aalyria is at the forefront of innovation in satellite and airborne mesh networks, as well as cislunar and deep-space communications. We are...

Ascendion is looking for Senior Java Consultant in London, UK ! In order to make an application, simply read through the following job description and make sure to attach relevant documents.Location: Bromley, UKWorking Model: Hybrid Full-Time role with AscendionWe are looking for a strong Java Consultant with excellent technical capabilities to join a...

We are looking for Java developers, from experienced seniors to hands-on principal engineers, to join long-term greenfield projects with a leading financial institution in London. You will be part of small, high-calibre engineering teams delivering strategic rebuilds and modernisation projects, replacing legacy systems with clean, cloud-aligned solutions...

Contract Opportunity | Tier 1 Investment Bank | Canary Wharf Overview Our client, a Tier 1 Investment Bank based in Canary Wharf, is seeking an experienced C# Developer to join a strategic application modernisation programme. This role sits within a technology team responsible for evolving critical business applications, supporting a transition from legacy...

Help Skyscanner to be even more useful to our users through personalisation and backend data processingWorking with huge, complex data on our user behaviour, your expertise will ensure a much deeper understanding of our users allowing Skyscanner to deliver a more relevant, personal and trusted service to many millions of users worldwide.This isn’t simply...

We’ve signed up to an ambitious journey. Join us! As Arrive, we guide customers and communities towards brighter futures and more livable cities, it isn’t a challenge just anyone could take on. Luckily, we have something to help us make it happen. Our people and our values. We Arrive Curious, Focused and Together. Just as our entire brand is inspired by...

Job Description Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £550–600/day A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and...

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....

At Broadridge, we've built a culture where the highest goal is to empower others to accomplish more. If you’re passionate about developing your career, while helping others along the way, come join the Broadridge team.We are excited to announce an opportunity for a Senior Full Stack Developer to join our organization as part of our AI Enablement Team. In...

Java Engineer - Equity VolatilityThe successful candidate will join a global team that designs and develops Equities Volatility Risk and PnL and Market data systems. The candidate will work hands-on with other developers, QA and production support teams. The team interacts with key stakeholders such as Portfolio Managers, Middle Office and Risk Managers....

Bounteous, a global AI Services firm, seeks a Senior Java Developer for a hybrid Glasgow role (3 days in office). Bring 4–12 years’ experience to design, build, and scale Java-based AI-enabled applications.You will work with Java 17, Kafka, Spring Boot, and AWS, interfacing with stakeholders to clarify requirements and deliver robust software in a...

Senior Backend Engineer, Partner Integrations, PHP SymfonyA fantastic opportunity for a Senior Backend Engineer to join a growing, integration-led SaaS company. This is a hands-on role for a true integration engineer who has repeatedly built and maintained connections with different external partners, rather than a general product engineer who has only...

DescriptionAt Mindera, we craft software with people we love. We’re looking for a Principal Java Engineer with strong Retail experience who can join our crew!Please note: This is a six month contract that sits outside IR35. You will be required to work in Paddington 3 days a week.What does the role involve? Lead technical deep dives and knowledge sharing...

Bounteous is a global AI Services firm where agentic engineering and human experience converge to deliver transformative business outcomes for the enterprise. We help organizations design, build, and scale AI-driven products, platforms, and processes. With more than 5,000 team members worldwide, Bounteous delivers AI that sticks, powering adoption and...