java jobs in London

Rightmove, London's leading property portal, is seeking a Backend Engineer to join a collaborative, cross-functional team. You’ll design, build and scale services using Java 21+, Spring Boot, Kafka, Elasticsearch, Couchbase, SQL, Docker and Gradle, delivering impactful software for millions of users.You’ll own features end-to-end, partner with product...

Fasanara Capital is hiring an experienced Java Software Engineer to join Fasanara Digital and take ownership of systems powering 24/7 trading activity. You will develop and maintain a collateral management platform, reference data, and accounting infrastructure for both digital assets and traditional markets.You will work on hands-on development across new...

Senior Software Engineer - (Java/AI) Client Platform**Job Description****So, 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 -...

A leading financial services provider is seeking an eFX Software Engineer to build and optimise ultra-low-latency trading systems for global FX markets. This hybrid role requires a high-performance Java engineer skilled in complex technical challenges. Candidates should have strong experience in low-latency Java, a deep understanding of networking, and the...

Java Software Engineer with around 3-5 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 25+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. This hire will be part of a core...

Senior Software Engineer - (Java/AI) Brokerage ServicesIG 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 work here is real:...

Addition Solutions is seeking an experienced Backend Developer (Java/Spring Boot) for a fully remote contract. The role focuses on building scalable backend services, REST APIs and microservices in a high-volume environment. You will work with Java and Spring Boot, delivering reliable and efficient backend systems.Prior experience in iGaming, FinTech or...

Job Title Senior React Native Engineer - Client PlatformJob DescriptionSo, 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...

Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful and innovative technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. We are passionate about user-centred design, agile delivery, and building digital services that make a real...

DescriptionAbout Us: Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. Interested in...

Senior Java Developer - Outside IR35 - Up to £700 per day Hybrid in Central London October Start Date 12-Month Initial Contract We have partnered with a leader in the financial services sector who is looking for experienced Senior Java Engineers to join their Settlements team. This is a hands-on engineering role focused on developing and enhancing software...

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III (Java/Python Developer) at JPMorgan Chase within the Commercial and Investment Banking Emerging Markets Team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading...

Joybuy in London is seeking a senior backend architect to lead technical decisions and shape the architecture of our international core systems. You will combine hands-on coding with strategic planning to ensure performance, security, and scalability.The role emphasizes Java and Spring Boot, collaboration across global teams, mentoring engineers, and...

FIS Global is seeking a skilled engineer to join the Worldpay by FIS team in a full-time capacity. You will implement AWS-hosted Java solutions, focusing on compute, storage, observability and security, while shaping a hybrid cloud/on-premises architecture.Initially hands-on, you’ll move toward a system architecture role as the cloud journey advances,...

IG Group in City of London is hiring a Senior Software Engineer to push AI across Lifecycle engineering, focusing on AI-assisted coding, testing, and deployments within Java backend services. You will build internal tooling, improve observability, and automate repeatable steps while collaborating with product owners and security teams to ensure safe,...

JPMorganChase's Data Platforms team in the Chief Data & Analytics Office is seeking a Senior Lead Software Engineer to design and deliver trusted, market-leading technology products in a secure, scalable cloud environment.You will lead an agile team, drive advanced software engineering across metadata, domain-specific languages, and AI-assisted tooling, and...

Legal & General is seeking an experienced Engineering Manager to lead an engineering team and stay hands-on in delivering modern software solutions. You’ll collaborate with engineering, product, architecture and business stakeholders to create secure, scalable and reliable technology that drives customer value and supports our business ambitions.You will...

## Senior Software Engineer - (Java/AI) Brokerage ServicesApply: City of London - United Kingdom: Full time: Posted Today: End Date: October 26, 2026 (20 days left to apply): R\\_17905**Job Title**Senior Software Engineer - (Java/AI) Brokerage Services**Job Description**# **So, who are we?**IG has been at the centre of retail trading and investment...

A leading fintech organization based in London is seeking a Senior Java Software Engineer to join their Treasury Engineering function. This hybrid role entails building systems to manage capital optimization while providing significant architectural ownership. Candidates should possess strong backend engineering experience, especially in Java and Spring...

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorganChase within the ETF Technology team in EMEA, 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...