senior java developer jobs in London

Citi in London is seeking an experienced Java engineer to own end-to-end delivery of high-performance FX risk management applications. You will design scalable, low-latency systems, setting engineering standards and serving as a technical reference for the team.In an agile environment, you will translate complex requirements into robust code, collaborate...

Marks & Spencer Plc’s Foods Product team seeks a Senior Software Engineer to build and scale data-intensive backend services using Java, Micronaut, and Kafka. You’ll own features end-to-end, contribute to platform architecture, and drive engineering excellence while collaborating with product, supply chain and commercial teams.You’ll focus on...

Infoplus Technologies UK Ltd in Westminster seeks experienced Java backend engineers to build and maintain low-latency components for the Orion platform. You will own end-to-end delivery, investigate issues, and ensure robust production systems in a high-volume banking environment.The role emphasizes strong JVM performance, distributed systems design, and...

Testing Site - JPMC is seeking a Senior Software Engineer to advance data solutions within a fast-paced, agile environment. The role emphasizes building scalable data platforms, strong Java 17+ development, and cloud-based analytics using AWS.You will collaborate with data partners and cross-functional teams to deliver trusted, market-leading technology...

ioTech Solutions in London seeks experienced Java engineers to join a leading digital asset firm building next-generation crypto trading systems. The role focuses on high-performance, low-latency trading technology with strong core Java skills and extensive concurrency knowledge.Ideal candidates will have 10+ years of software development, Unix/Linux...

Zepz in London seeks a Senior Backend Engineer to build scalable services that detect and prevent financial crime across WorldRemit and Sendwave. You will own design, reliability, and cross-team collaboration, shaping the tech that underpins regulator-facing systems.You’ll combine strong Java/Spring experience with Kafka, PostgreSQL, and AWS, while...

The Team Citi's Equities Derivatives Technology department is investing in front-office development to support the Derivatives Flow, Delta One, and Exotics desks. We are looking for a hands-on Senior Developer to build applications to help desks manage critical market data used for their derivatives products pricing and trading. The Team Citi's Equities...

Broadridge Financial Solutions seeks a Senior Full Stack Developer to join the AI Enablement Team. You will design, develop, and enhance AI-enabled platforms with a focus on GenAI, vector stores, RAG, and context engineering.The role requires leadership, collaboration with architects, and delivering scalable software solutions. The ideal candidate has 7+...

🚀Senior Full Stack Engineer – Java/Kotlin&React 📍London | Hybrid 🏦Tier 1 Investment Bank | Prime Finance We are partnering with a Tier 1 investment bank on a major, multi-year transformation of its Prime Finance Equities platform. The Equity Accelerator programme is re-engineering core trading and post-trade systems, replacing legacy...

JUXT is seeking a Senior Full Stack Engineer to join a Tier 1 investment bank transformation. You will build Java/Kotlin event-driven services and React/TypeScript applications that power live, financially critical systems.You’ll modernise legacy trading and post-trade platforms, design for failure, data integrity and replay, and work across Kafka,...

JP Morgan Chase in London is seeking a Senior Lead Software Engineer to design, build and improve scalable client-facing capabilities for JPMorganChase Online International. You will lead technical delivery, contribute to production code and mentor other engineers, influencing architecture and engineering culture across the team.The role sits in Asset &...

easyJet is seeking a Lead Software Engineer to combine hands-on coding with technical leadership. You'll design, build and operate production software in AWS, guiding a small squad of engineers while working closely with an Engineering Manager and Product Owner to align technical work with business priorities.You will lead delivery at the squad level, set...

Out of the successful launch of Chase in 2021, we’re a new team, with a new mission. We’re creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills and helps you realize your potential. Our team is key to our success. We’re people-first. We value collaboration, curiosity and...

E‑Frontiers in London is seeking a Senior Technical Business Analyst to bridge capital markets trading platforms with trading technology and gaming backgrounds. You will translate complex technical challenges into actionable requirements and collaborate with Java engineers, architects and QA to deliver high‑performance, scalable solutions.The role...

JPMorganChase in London is seeking a Sr Lead Software Engineer (Java/Python) to help design, build, and deliver high-performance trading software within Digital Markets Execution Technology. You’ll contribute as a core technical member of an agile team, guiding architecture, coding, testing, and operations to meet ambitious objectives.The role emphasizes...

CMC Markets seeks a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This hands-on role sits at the core of our market-making technology, where nanoseconds matter and engineering excellence is critical.You will design and build ultra-low latency...

Citi ищет инженера по рискам для руководства реализацией проектов Real‑Time и On‑Demand Risk в Лондоне. В рамках команды вы будете работать с трейдингом, MQA, Market Risk и технологическими командами, чтобы...

Citi in London is seeking a Senior Low Latency Engineer to join the High Performance Architectures team. You will work on Java/Rust based low-latency services, focusing on trading systems and market data replay utilities.The role requires SME-level Java expertise, strong collaboration with multiple teams, and mentoring responsibilities. Hybrid working...

Energy Jobline CVL in London is seeking an exceptionally experienced software professional to guide a domain spanning vanilla financial products and cutting-edge tech stack. The role requires 15+ years of industry experience and at least 5+ years in banking or trade management, with hands-on development across front-end and back-end systems.You will work...

Omnicom is seeking an experienced Senior Backend Developer to join the London team. You will be responsible for developing high-performance Java applications, driving architectural decisions, and collaborating with cross-functional teams on automotive-brand projects.Key focus areas include Spring Boot-based microservices, RESTful APIs, and modern CI/CD...