senior java developer jobs in London

I'm working with a leading global investment bank looking for an exceptional low-latency engineer to join its specialist electronic trading technology team.This is a highly hands-on position-around 90% coding-building Java and Rust event-sourcing frameworks that support algorithmic trading platforms across the bank.The technology operates at serious scale,...

We’re looking for a senior engineer to join us working in in our embedded team within Prime Brokerage, the area of the bank that works with hedge funds and large institutional clients. You’ll work hands‑on to build data-intensive systems with huge scale. The role carries real ownership and you will help develop the regulatory and client reporting book...

Job TitleSenior Software Engineer - (Java/AI) LifecycleJob DescriptionSo, who are we?IG has been at the centre of retail trading and investment since 1974, when we helped create the market for financial spread betting. Today, we're a FTSE100 fintech operating across five continents, serving over 700,000 clients and handling billions in transactions - built...

Looking to connect with experienced Java Engineers for an opportunity within a leading digital asset firm in London. The team is building next-generation crypto trading systems, with a focus on high-performance, low-latency trading technology. What they're looking for: 10+ years of relevant software development experience Strong core Java skills and...

Sanderson is hiring an experienced Application Architect to design and oversee complex application solutions in a hybrid working environment. This role requires deep expertise in Camunda and Java, with a primary focus on delivering scalable solutions for major clients in the insurance sector.The ideal candidate will have over 10 years of hands-on experience,...

JPMorgan Chase & Co. in London is hiring a Software Engineer III to contribute to end-to-end cloud-native microservices in the International Consumer Bank. You will work with a distributed team on fraud prevention, identity services, money transfers, card payments, lending and onboarding to build secure, scalable software.The role emphasizes strong Java...

JPMorgan Chase & Co. is seeking a Software Engineer III (Java/Python) to join the Commercial and Investment Banking Emerging Markets Team in London.You will contribute to an agile team delivering secure, scalable market-leading technology products, writing production quality code in Java and Python, and applying modern testing and automation practices....

If you are an experienced engineer who enjoys building, solving difficult problems and helping others deliver better software, we have an opportunity for you. As a Senior Lead Software Engineer at JPMorganChase within Asset & Wealth Management’s International Private Bank Technology organisation, based in London, you will design, build and improve scalable...

Harrington Starr is seeking an experienced Java Developer to join their London Technology team, contributing to world-class Capital Markets systems. The role emphasizes hands-on software engineering with modern technologies and a deep dive into core business domains.The ideal candidate will have strong Java, Spring, multithreading, and RMI experience,...

Vitality is seeking a Principal Software Engineer to lead the engineering function across enterprise platforms and customer-facing solutions. You will shape standards, drive architecture decisions, and guide large-scale initiatives while ensuring reliable, high-performance software delivery. Hybrid work across London, Bournemouth or Stockport offices.The...

Senior Java/FIX Engineer - IG PrimePrime Java/FIX Engineer ‰ So, who are we? IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always operated. What that means for the people who...

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products.As a Senior Python Engineer at JPMorgan Chase within the AM Research Technology team, you are an integral...

5 Days onsite (London) must.Someone with 15+ years of industry experience , preferable 5+ years in banking , trade management.Understanding of Vanilla products ( Macro, Credit, Securitisation). Experience of working with HTML5, Angular, REACT, NPM, Java Spring Boot, Post Gres/Cloud SQL. Understanding of containerised deployment – Kubernetes, ECS on...

JPMorgan Chase & Co. in London is seeking a Senior Lead Software Engineer to join the Platform team as a hands-on Backend engineer. You will build a Spring Boot-based framework and robust libraries to support product engineering teams across the Investments ecosystem.The role blends deep Java/Spring expertise with strong problem-solving, design skills, and a...

Fynity Limited in London is seeking a Senior Java Engineer to design and build high‑performance, low‑latency systems for global financial clients. You’ll work on distributed architectures using Java 17+, Spring Boot, and modern CI/CD practices.You will own development from design to production, collaborate with architects and client teams, implement...

Randstad Technologies Recruitment is seeking a seasoned Software Engineer for a contract role in London. The position requires 5+ years of hands-on Java/J2SE development and strong experience with multithreaded applications, design patterns, and Linux environments. The role is hybrid, based in London with in-office work three days per week.The candidate...

RE Partners seeks a hands-on Senior Java Principal Engineer to join an emerging Deployment Security & Software Reliability Engineering team. You will work with development teams to speed up, secure, and stabilize software releases, focusing on Java, CI/CD, dependency modernization, automated testing, and software supply-chain security.The role is highly...

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...

Elastic is seeking a Senior Java Developer to join the Elasticsearch team and drive the Inference API efforts. You will work across the plugin framework, REST API, and integration points with external providers, influencing architecture and quality across distributed teams.You will design, implement, and test APIs, streaming, and billing integrations,...

Our vision is to give everyone the belief they can make their move. We aim to make moving simpler, by giving everyone the best place to turn to and return to for access to the tools, expertise, trust, and belief to make it happen.We're home to the UK's largest choice of properties and are the go-to destination for millions of people planning their next move,...