java jobs in London

We're looking for Senior and Principal Java Developers with a strong background in low‑latency systems to join us on a high‑performance trading and real‑time data project, for a major financial institution.You’ll be joining an environment where good software engineering truly matters 6 where clean design, measurable performance, and deep system...

A leading music company is seeking a Lead Developer to design, develop, and maintain external-facing royalty portals using Java. The role involves building AWS serverless solutions, working with Docker and Kubernetes, and providing technical leadership within the development team. Candidates should have strong experience in AWS, SQL, and agile environments....

Mid-Level Software Engineer (Java / AWS)We’re supporting a large, well-established UK organisation on a key digital delivery programme and are looking for two mid-level Software Engineers to join an existing engineering team.This is a hands-on development role suited to engineers who enjoy writing clean, testable code, working collaboratively, and...

Kate Matthews Solutions is actively seeking mid to senior level Java Developers to join a fast-growing FinTech in the UK. This role centers on rebuilding the tech stack using Kafka and Kafka Streams to create a scalable backbone for rapid growth.You will solve real-world problems in small, agile, cross-functional teams, focusing on large-scale distributed...

Solytics Partners Careers is seeking a skilled developer to design and implement market connectivity solutions using Core Java. This hybrid position in London offers the chance to work on integrating electronic trading venues and developing scalable services. Candidates should have strong expertise in Java, experience with TransFICC’s Connectivity...

Direct message the job poster from ArrowsConsultant @ Arrows | UK Contract and Perm | TechnologySenior Software Engineer (backend focus) - Java, Springboot & AWS – paying up to £650/day (Outside IR35) – Hybrid (2x a week - London) – 6 month contractA fast-growing digital banking platform is seeking a Senior Backend Engineer who is passionate about...

At ScaleneWorks People Solutions, we're more than recruiters; we're career architects dedicated to connecting exceptional talent with top-tier opportunities. Backed by industry experts, we priorities relationships, offer global opportunities, and champion your success every step of the way.Ready to shape your future? Explore opportunities with us today.We...

Exceptional Java engineering, applied where it actually matters.My client — a fast-growing technology joint venture between a global management consulting leader and a global alternative investment fund manager — is hiring a Senior Java Developer to join their technology team, building bespoke systems across banking, financial services and private...

JD.com in London is hiring for the Affiliate Partnerships team to build and scale Joybuy's global affiliate platform. You will develop backend services in Java/Spring Boot to support merchants and publishers across the UK and Europe.The role requires a BS in a technical field and 3+ years of Java/Spring Boot experience, strong coding skills, and bilingual...

Parser Limited in London is seeking a Senior Backend Engineer (Java) to lead the design, development, and support of mission-critical banking services in a multi-cloud environment.You will own distributed systems and microservices, build RESTful APIs, and ensure robust testing, CI/CD, and production support while collaborating with cross-functional teams...

Myn in London is recruiting for a Senior Java Engineer to join teams building and evolving large-scale, business-critical technology platforms.You will design, build and enhance Java-based services and APIs as part of an experienced engineering team across development, modernisation and continuous improvement. This role emphasizes performance, resilience and...

Handelsbanken is seeking a Senior Java Developer to join the IT team responsible for the delivery, support and maintenance of credit systems and regulatory reporting. You will provide expertise across the full software development lifecycle, collaborating with cross-functional teams to deliver robust solutions.The role emphasizes ownership, architectural...

A systematic hedge fund in Greater London is seeking a hands-on software engineer to join their established engineering team. The role involves building and maintaining production systems, with a strong focus on Java development and opportunities to work with Python. Candidates should have 3-5 years of experience in software engineering and excellent...

Wissen Technology is looking for an Intermediate/Senior Java Engineer to join their team in London, UK. This is a full-time position with a hybrid work model that requires 3 days a week onsite.The ideal candidate will have a solid background in Java programming, experience in enterprise application development, and a passion for innovative solutions....

A global technology company is looking for a dedicated backend engineer to join their team in London. You will drive the technical vision for the backend solution powering the recipient management product, collaborating with an agile team focused on delivering top-notch customer experiences. The ideal candidate has experience in Java 8+, distributed systems,...

Nomura is seeking a Senior Java Software Engineer - Vice President in London to lead end-to-end platform initiatives within Global Markets IT, Equities IT, and Prime Brokerage initiatives. The role combines hands-on coding with strategic technical leadership, driving testing-first practices and incident management across complex systems.You will mentor...

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

Harrington Starr is seeking a talented Java Software Engineer to join our Technology team in London. You will contribute to building world-class Capital Market systems and SaaS applications for post-trade technology.Expect a hands-on role in a close-knit team, working with modern technologies on trading platforms and complex financial markets. The ideal...

Vertus Partners has partnered with a leading investment bank to recruit experienced Low Latency Java Developers for Front Office Algo and eTrading projects across multiple asset classes.You will design high-performance, low-latency Java applications, focus on throughput optimization, investigate bottlenecks, and collaborate with cross-functional teams. This...

Backend Java Developer – Data Fabric / Platform Engineering Location: London (Hybrid)Employment: PermanentSalary: £70,000 – £90,000 base (dependent on experience) If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. We’re building the core backend services of a Data Fabric platform that...