java jobs in London

Referment is seeking a Java engineer to join a London-based engineering team building high-throughput, data-driven services. You’ll work on Java 17+ microservices and streaming components that process financial data at scale, collaborating in a distributed agile setup with product and fellow engineers in short cycles.The role suits mid-level developers...

HCLTech is a global technology company seeking a skilled Java microservices engineer in London. The role focuses on designing, developing, and maintaining high-performance microservices using Java 17 and Spring Boot, with reactive WebFlux and REST APIs.You will collaborate across teams to deliver end-to-end solutions, implement event-driven messaging with...

DescriptionAre you ready to elevate your impact and shape the future of financial technology? At JPMorganChase, you’ll collaborate with talented colleagues to deliver trusted, market-leading products. You’ll have opportunities for career growth, work on complex projects, and contribute to a culture that values diversity and inclusion. Your expertise will...

JPMorganChase in London seeks a Lead Software Engineer to join Corporate Technology. You will lead, mentor, and drive innovation across secure, scalable technology products.This role emphasizes collaboration, continuous learning, and the responsible use of AI within engineering practices. You will influence system design, SDLC, CI/CD, and AI-assisted...

NCONS Talent Solutions is hiring an AWS Technology Lead to transform a Java monolith into an AWS-native solution. The role is London-based (Holborn), hybrid, permanent/contract, with 12–15+ years experience context.You will design target architecture, code and review, and guide the engineering team and client conversations from start to finish, leveraging...

Job Description Join us to shape the future of payments technology and make a real impact on your career. As part of our agile team, you'll help build trusted solutions that power global transactions. You'll have the opportunity to grow your skills, collaborate with talented colleagues, and contribute to a culture of inclusion and respect. We value...

Citibank (Switzerland) AG is seeking an Engineer to design and deliver Java/Kotlin components for the Core Prime Brokerage platform. You will participate in agile development, CI/CD, and automated testing while collaborating with a global team.You will work with SREs and analysts across time zones, mentor junior analysts and grads, and contribute to...

Selby Jennings is seeking an experienced Software Engineer in London with strong Java backend development to join a leading hedge fund's team. The role involves building highly available, low-latency systems that process millions of transactions per second and advancing automation across the business.You will design, develop, and deploy solutions for...

Citibank (Switzerland) AG is seeking a senior Low Latency Java Engineer in London to lead Java-based, microservices-driven architecture in a high-performance trading environment. You will work within Citi Tech's London-based High Performance Architectures (HPA) team on low-latency frameworks and market data systems, driving efficient, scalable solutions.The...

Monzo is hiring a Backend Engineer to work on the bank’s in-house platform. You will contribute to scaling backend systems, collaborate with multiple teams, and own elements of the distributed services stack using Go and JVM languages.The role supports UK remote work with London or nationwide teams, offering competitive salary and visa sponsorship options....

Hunter Bond is seeking a Principal / Senior Java Developer to join a elite FinTech engineering team in London. You will tackle high-scale, business-critical technology at the intersection of financial services and digital assets, working with top engineers and architects in a hybrid setup.You should have strong Java/server-side experience, Linux, and a track...

J.P. Morgan is seeking a core technical contributor to join an agile team delivering trusted, market-leading technology products in a secure, scalable way.You will drive end-to-end software solutions across multiple business functions and lead critical architectural discussions to ensure reliability and security. Key requirements include deep Java (17+),...

Job Title: Senior Java Developer - Rates Intraday Risk Technology Job Code: 14911 Country: GB City: London Skill Category: IT\Technology Job Title: Senior Java Developer – Rates Intraday Risk Technology Corporate Title: Associate Department:Information Technology Location: London (Hybrid) Company overview Nomura is a financial services group with an...

Energy Jobline ZR in London (Hybrid) seeks a Senior Java Architect to lead the design and delivery of enterprise-grade banking and payments platforms. You will provide technical leadership to offshore teams and define microservices and event-driven architectures for cross-border solutions.The role requires strong Java/Spring Boot experience within...

Contract Role - VP Full Stack Engineer - Angular & Java/Solidity (smart contracts on Ethereum/blockchain) - London/Onsite - 12 months initial - Inside IR35 We are looking for 3 experienced VP-level Software Engineers to join the team as contractors on an immediate basis. The team is looking for well-rounded engineers with experience across multiple...

JPMorgan Chase & Co. in London seeks a Lead Software Engineer for the Equity Derivatives Group.You will join an agile team delivering high-quality software using modern tech and industry best practices, collaborating with a global technologists network to build and support market-leading products. Responsibilities include designing innovative solutions,...

A leading global financial markets infrastructure provider in Greater London seeks an experienced Engineer for its Post Trade team, focusing on developing critical cloud-based services. The ideal candidate will possess strong skills in microservices, Java, and DevOps practices, coupled with a collaborative mindset to drive innovation and excellence in...

A dynamic sports betting startup in London is seeking Java Software Developers to join their innovative team. The role involves working with quantitative researchers and talented engineers to build data integrations and support systematic trading models. Candidates should have at least 3 years of Java development experience and be proficient in Python or...

Backend Java Developer – Data Fabric / Platform Engineering Location: London (Hybrid)Employment: PermanentSalary: £70,000 – £90,000 base (dependent on experience) If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. We’re building the core backend services of a Data Fabric platform that...

About The RoleWe are looking for an experienced Java/Kotlin Engineer to join the core engineering team delivering a major, multi-year strategic risk system replatforming programme.You will work at the heart of the programme, building key components within a highly scalable, risk-tolerant architecture designed to handle very large volumes of data in a...