senior java developerin jobs in London

CreateFuture in the United Kingdom is hiring a Senior Backend Java Engineer who loves building scalable, high-quality software and mentoring teams. You will influence architectural direction and help embed AI and automation for client value.You'll design and evolve RESTful APIs, lead technical discussions, and champion engineering excellence across multiple...

Grid Dynamics is seeking an experienced Java/Kotlin Engineer to join the core engineering team delivering a major, multi-year strategic risk system replatforming programme. You will work at the heart of the programme, building key components within a highly scalable, risk-tolerant architecture designed to handle very large volumes of data in a demanding...

EPAM Systems in London is seeking a Java Developer for a hybrid role. You will design, develop and maintain complex Java and Python applications, guiding architecture and leading technical initiatives across global teams.You will mentor developers, drive code quality through reviews and automated tests, and deliver production-ready solutions while thriving...

Catapult is seeking a Senior Software Engineer to design, build, and evolve our web-based football analytics platform. You will work across backend services and frontend UX/UI to deliver data-driven features for professional teams.Based in London, you will own features from design through production, collaborate with Product and other engineering teams, and...

CreateFuture UK is seeking a Technical Lead—Backend to drive Java/Spring Boot services, own delivery direction, and mentor engineers within a hybrid setup. You will work across REST APIs and Kafka pipelines, shape technical decisions, and champion AI‑assisted development to raise quality and speed.The role blends hands‑on coding with client leadership...

JPMorganChase is seeking a Software Engineer III in London to own end-to-end delivery of secure, full stack features using Java, Spring, and microservices. You will work with Kafka/event-driven patterns, CI/CD pipelines, and robust testing to improve performance and resiliency.You will mentor teammates, participate in architecture reviews, and help shape...

United States Digital Space LLC is seeking a mid-level to senior IC to join our core engineering team. You will be responsible for implementing and maintaining our Java client library, and working alongside our core engineering team on the most performance-sensitive parts of our codebase.You will design, develop, and maintain high-performance server...

Nomura in London is seeking a Senior Java Developer for the Rates Intraday Risk Technology team. You will work on server-side processes and APIs supporting intraday risk and P&L for the Rates desk, collaborating with flows desks and quants.The role offers hybrid working in London, requires solid Java experience with Spring, and familiarity with lifecycle...

Fractal Analytics UK Limited is seeking a Senior Software Engineer to design, build, and support scalable backend services for banking and financial services.You will lead architectures, mentor engineers, and collaborate with product, security, and operations to deliver resilient, cloud-native microservices in a fast-paced, on-site London environment. The...

Hunter Bond seeks a Kafka Engineer/Java Developer for a FinTech client in London. The role is hybrid, focusing on building distributed, low-latency systems within a high-calibre team.You will mentor juniors and help evolve infrastructure while delivering robust, scalable software. Salary up to £130,000 plus bonus, with a supportive, innovative culture and...

Source Group International is seeking a Senior Tech Lead / Senior Camunda and Java Software Engineer to drive a Camunda to CIBseven migration in a large enterprise. You will architect and develop Java 17+ microservices while mentoring the team and guiding DevOps practices.The role is fully remote, with collaboration across Agile teams to deliver high-quality...

A leading health retailer in London is seeking a Senior Backend Engineer to develop tools that enhance store design and optimize customer experiences. The role involves designing scalable backend services using Java and Spring within a hybrid working environment. Strong experience in backend development, API management, and databases is essential. This...

Version 1 is seeking a Test Engineer to design and build Java-based automation frameworks, writing maintainable test code with a focus on quality. You will join an agile delivery team, collaborating with developers and product owners to ensure robust testing and high-quality releases.You will design and extend API test suites using Karate or REST-assured,...

Netcompany in the UK is seeking a Senior Software Developer with strong Java and DevOps experience to join our technology consultancy. You will contribute across the full software development lifecycle, from design and development to delivering high-quality solutions for clients.The role offers hands-on coding, exposure to modern stacks (Java Spring, AWS,...

JPMorgan Chase & Co. in City of London is seeking a Software Engineer III to join the Corporate & Investment Bank Payments tech team. You will be a seasoned member of an agile team designing trusted market-leading technology products with security, stability, and scalability.You will contribute across the SDLC, develop secure production code, and drive...

LexisNexis Risk Solutions is seeking a Senior Software Engineer to design, develop, and deliver scalable Java-based applications using modern technologies and cloud-native practices. You will collaborate with Product, UX, QA, and engineering teams to build robust solutions and contribute to architectural decisions.The role offers opportunities to mentor...

Square One Resources is looking for a Full Stack Developer proficient in Java (Spring Boot) and Angular (17+) to join an agile team. The role involves designing and maintaining scalable cloud-native applications, implementing robust UI management, and ensuring high-quality software delivery.The ideal candidate will have over 5 years of experience in Java,...

Salt seeks a Senior Java Developer to design, develop, and maintain secure, scalable microservices on AWS. You’ll collaborate with platform engineers, QA, and product teams, following DevOps and security best practices. Hybrid role with 1–2 days on-site, starting ASAP for a 3–6 month contract.The role requires 5+ years of backend experience, strong...

CGI is seeking a Senior Full Stack Developer to help shape digital services supporting access to justice across the UK. You’ll own reusable tech built to onboard faster, integrate consistently and operate reliably, using Java and Angular to tackle complex challenges.This hybrid role works with a UK Government Department client, and requires UK Security...

Thomson Keene's client, a Global Investment bank, is delivering a new centrally automated platform for its Prime technology division. You will join a globally distributed team and contribute to building scalable, event-driven services using Java, Spring and Apache tooling.The stack includes Java, Spring, Flink, Kafka, Ignite and Angular. The role requires...