java jobs in London

Role OverviewTP ICAP are looking for a Senior Java Developer delivering low‑latency, highly available trading system components with deep expertise in Java, FIX connectivity, and distributed real‑time messaging. In this role, you will be responsible for designing, building, and optimising mission‑critical trading services across multiple asset...

Legal & General (L&G) is seeking an Application Support Analyst to join our Technology Operations team in the UK. You will support business-critical applications across the SCOPE and Maple environments, using SQL, logs and Java to investigate incidents and resolve problems.The role focuses on reading and debugging Java code, managing incidents through...

Senior Software Engineer I (Java & JavaScript)Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript?About the team:You will join the Identity & Access Management team, which owns the authentication and authorisation infrastructure underpinning Elsevier’s global product suite. We build and operate a highly...

Job Title Senior Full Stack Engineer - (AI enablement) Lifecycle Job 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...

JPMorgan Chase is looking for a Software Engineer III to join their International Consumer Bank team in London. This role involves developing cutting-edge cloud-native applications while ensuring reliable and secure systems. Candidates should have a solid background in Java, cloud technologies, and a passion for solving complex problems in the financial...

Altimetrik is seeking a Senior Java Developer for a global financial institution undergoing large-scale digital transformation. The role is hybrid with three days onsite in London, focused on building Java applications using Spring Boot within a microservices architecture.You will work with REST/SOAP services, databases, and cloud platforms, while...

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...

SmartChoice are supporting a data platform programme for a global financial services organisation and require a number of senior backend (Java) developers to join on a 6 month contract. In this role you will be responsible for: Design and implement core functionality within Data Fabric backend services. Develop and enhance rule definitions used for policy...

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....

**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...

We have partnered with an Investment Bank in supporting them in their search for experienced Low Latency Java Developers to join their critical Front Office Algo and eTrading projects across a variety of different asset classes. What you'll be doing: Design/develop high performance, low-latency applications for essential systems Focus on optimising...

J.P. Morgan Personal Investing is seeking a Lead Software Engineer to join the Backend Engineering Platform. You will design and maintain Spring Boot based frameworks that empower product teams to build scalable financial services.In this hands-on role, you will deliver architectural guidance, mentor engineers, and collaborate with SDLC and Infrastructure to...

Graduate / Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate / Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate / Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over the world to attract, engage, and delight customers by...

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...

State Street is seeking an experienced Java Full Stack Developer to join our Digital Asset team. You will deliver end-to-end product experiences across Java back-end services and modern UI components, enabling digital asset capabilities in a regulated financial services environment.You will build REST APIs, orchestrate microservices, and develop responsive...

Areti Group | B Corp™ is hiring a Full Stack Developer for a UK Government digital programme. 100% remote, BPSS clearance, and no travel required; join a fast‑moving team delivering public services.You’ll build citizen-facing services from front end to back end, using the GOV.UK Design System, with Java, Spring Boot, Node.js and modern cloud tooling...

**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...

AMS is the world’s leading provider of Talent Acquisition and Management Services. Our Contingent Workforce Solutions (CWS) service, partner with Deutsche Bank to support contingent recruitment processes. On behalf of Deutsche Bank, we are looking for a Full Stack Java Developer for a 6 month contract based in the bank’s London office on a hybrid working...

Software Engineer – C# / Java Key Technologies: C# and or Java Developers needed. London Perm Role | 3 Days a week in the office. £55,000 - £65,000 Harrington Starr has partnered with a well-established Financial Consultancy to find a Full Stack Developer at the Associate level. This is a hands‑on development role, supporting a range of internal...