java jobs in London

Job Description Are you an experienced Senior Software Engineer or Technical Lead who enjoys remaining hands‑on while guiding teams and shaping technical solutions? Are you an experienced Senior Software Engineer or Technical Lead who enjoys remaining hands‑on while guiding teams and shaping technical solutions? A leading specialist technical consultancy...

Solytics Partners is a Global Analytics firm, recognized with multiple industry awards for innovation and excellence. Our team comprises experts with deep domain knowledge in risk, analytics, AI/ML, AML/FCC, and fraud. By converging this expertise with cutting‑edge technologies like AI, Machine Learning, Generative AI, and Large Language Models (LLMs), we...

OverviewFDJ UNITED is one of Europe’s leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition....

DescriptionWe have an exciting opportunity for experienced Java developers to join our team!You will have a passion for software development and an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You will be involved in all areas of delivery, with the technical gravitas to mentor and inspire the development...

We’re hiring experienced Java Engineers for a major technology programme with one of the UK’s leading broadcast and media organisations. You’ll join a high-performing engineering team building and scaling event-driven, cloud-native services, working with modern technologies including Java, Kafka, Kubernetes and Docker. The role You’ll be hands-on...

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,...

Direct message the job poster from iO Associates - UK/EUStrategic IT Consultant: Uniting Skilful Minds with Cutting-edge MarketsJava Developers (ACTIVE BPSS CLEARANCE IS ESSENTIAL)- Inside IR35 - Mostly Remote (UK)A large organisation is urgently seeking 2 experienced Java Developers (ideally 1 Senior, 1 Mid-Junior Level) to support a long-term digital...

Overview Base pay range: Direct message the job poster from Caspian One. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Job title and location Java & low-latency talent specialist | Financial technology markets | FX, Equities & Rates | Delivery Consultant at Caspian One Location: London, UK Business...

Staff Back-end Engineer (Go Lang or Java)About the Opportunity:MateHR is currently seeking a highly experienced Staff Backend Engineer on behalf of one of our most ambitious clients rapidly scaling fintech startup that’s reshaping global transaction services. This exciting organisation is quickly expanding its presence internationally, notably making...

JPMorgan Chase & Co. in London/Greater London is seeking a Lead Software Engineer to design, build, and operate secure, scalable financial software within Markets Technology.You will own production outcomes, drive architecture decisions, and advance AI-assisted development within an agile team. The role requires strong SDLC expertise across Python, Java, and...

London Stock Exchange Group (LSEG) is seeking an experienced Application Architect to join the World-Check One – Risk Engineering context. You will lead the design of scalable financial services software, collaborate with solution architects and engineering teams, and influence technology strategy across the LSEG ecosystem.You will guide architecture...

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...

Northrop Grumman UK is offering a 12-month Industrial Placement Software Engineer programme starting September 2027 in New Malden, London. You will gain practical software engineering experience by developing software for defence programmes and contributing from day one in a collaborative team.You will work with Java/C++ in modern environments, participate...

Provntalent is seeking a Senior Java Trading Systems Developer to advance its electronic trading technology. You will design, build and optimize Java-based trading systems, impacting order routing, execution and lifecycle processes across multiple markets.The ideal candidate brings deep experience in electronic trading or capital markets, strong Java...

Citi is recruiting for a Prime Brokerage Technology role in London. You will own and deliver Java/Kotlin components within the Core Prime Brokerage platform, contributing to CI/CD, automated testing and SDLC improvements.You will work closely with analysts, plan features, and document technical work while supporting production and resolving issues. The team...

RE Partners in London seeks an experienced and opinionated Java Developer to join the high-performing engineering team, building low-latency, high-throughput payments systems.You will design scalable real-time services using Core Java, Spring Boot, and RESTful APIs, while mentoring engineers and shaping architecture.This hybrid UK role offers opportunities...

Vallum Associates is seeking a senior Java architect to design, develop, and optimize distributed systems and event-driven architectures for real-time data processing. You will implement solutions using Java 21, Spring Boot, Flowable, and cloud-native technologies, and build streaming platforms with Flink and Kafka.You will apply CQRS and Event Sourcing...

A leading technology firm in the United Kingdom is seeking a Full Stack Developer to join their high-performance team. You will design and build essential applications supporting global trading activities. The ideal candidate has at least 3 years of leadership experience in the finance sector and a solid understanding of financial products. This role offers...

Job TitleApplication Engineer (Angular, Java)The RoleYou'll be joining the Europe FAS engineering team responsible for building the digital capabilities that power client onboarding across Vanguard Europe. The team creates automated, seamless experiences that make it easy for FAS clients to do business with Vanguard, from prospect journeys and lead...

**Low Latency Java Engineer**Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that...