senior java software engineer jobs in London

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...

Elsevier is seeking a Software Engineer III to design and develop scalable Java and JavaScript solutions within the Identity & Access Management team. You will work on authentication infrastructure, integration with identity providers, and downstream APIs on AWS.The role emphasizes CI/CD, high code quality, and AI-assisted development tools to improve...

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...

Elastic is seeking a Senior Software Engineer for the Elasticsearch team to build foundational infrastructure and shared functionality. You will drive low-level design, ensure performance, security, and maintainability, and collaborate across teams.You will work on serverless orchestration, CI/CD workflows, and enabling Elasticsearch across cloud,...

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...

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....

Elsevier is seeking a Software Engineer III to design and develop scalable, high-performance identity platform components in Java and JavaScript. You will work on authentication, authorization, and integration with identity providers, building on AWS ECS and EKS, and contribute to AI-assisted development workflows.You will participate in CI/CD pipelines,...

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...

J.P. Morgan is seeking a Software Engineer III (Java/Python) to join the Commercial & Investment Banking Emerging Markets Team in London. You will contribute to building secure, scalable, production-ready software and participate in agile development, code reviews, testing, and deployment.The role emphasizes high-quality production code, AI-assisted tooling,...

Al Allegis Global Solutions Limited (AGS) seeks a Senior Java Developer for a Tier-1 UK Investment Bank in London. You will drive platform enhancements, craft robust Java/Spring solutions, and collaborate with a global team to meet critical derivatives requirements.Hybrid work: 2 days onsite, 3 days remote. 5+ years in investment banking IT, strong...

About Us Based in Chiswick, London, Boba Commodities has traded commodity futures since 2013. The point of the profit is what we do with it: investing into community or planet enhancing businesses around the world that share our values. That isn't a page on our website. It's why the company exists. We're carbon negative and we double-offset our footprint,...

Senior Software Engineer – Pre-IPO AI Scale-Up | Remote-First (UK) | Up to £140,000 + 15% Bonus + VSOPs This AI scale-up is profitable, has won several awards and is on the Pre-IPO Watchlist's Top 50 companies to watch. It has outgrown its early architecture, and it needs senior engineers to build what comes next. It's an opportunity to own critical...

Abtrace is transforming primary care by enabling proactive, preventative healthcare at scale. We support 500+ practices and 4.5M patients across the UK, helping teams identify risk earlier, act sooner, and deliver care efficiently - without extra burden. Our Engineering team builds robust, scalable, and high-impact software that drives real outcomes. As we...

Works closely with: Engineering Tech Lead, QA team membersSoftware: C#Location: UK / Estonia / US (remote-friendly within these regions)The Senior Software Engineer is a high-impact individual contributor who delivers complex work and raises the effectiveness of the team around them.This role exists to tackle technically challenging problems, support less...

Senior AI Engineer Are you excited about building intelligent systems powered by cutting-edge AI technologies?Do you enjoy designing models that turn complex data into impactful solutions? About the team: Embedded Innovation Teams are cross-functional squads embedded within our segments to rapidly turn internal AI experimentation into validated, reusable...

Join us and elevate your software engineering career. You’ll design market-leading technology products that drive innovation in financial services. At JPMorganChase, you’ll collaborate with talented teams, grow your skills, and make a real impact. We value your expertise and offer a dynamic environment where your ideas drive progress. Be part of a team...

Job Description As a Lead Software Engineer at JPMorganChase within Digital Markets Execution Technology, Execute, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for conducting critical...

A global technology company is seeking a Senior Software Engineer II for the Contacts Team in Greater London. The role involves driving technical solutions for recipient management in a collaborative agile environment. Candidates should possess strong Java experience and a proven record with distributed systems. This position emphasizes a customer-centric...

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...

A financial services client is seeking a Senior Back-End Developer skilled in Java Microservices to work primarily onsite in London. You will design and maintain critical back-end components in a microservices architecture, collaborating with teams to deliver high-performance applications. This role requires expertise in Java, Spring Boot, and blockchain...