senior software engineer- java jobs in London

Job TitleSenior Java/FIX Engineer - IG PrimeJob DescriptionPrime Java/FIX EngineerSo, 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...

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Senior Low Latency Java Engineer This is a senior...

J.P. Morgan Chase is seeking a Software Engineer III for the International Consumer Bank initiative. You will contribute to cloud-native microservices and work with a distributed, diverse team to deliver robust banking solutions.Join a regulated financial services environment with opportunities across fraud prevention, identity services, payments, and...

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 available identity platform that integrates with multiple identity providers, entitlement services, and downstream APIs, running on AWS ECS and...

JPMorganChase is seeking a Software Engineer III in its Commercial and Investment Bank technology team in London. You will lead the implementation of critical technology solutions across multiple domains, delivering secure, scalable products within an agile team.You will produce architecture artifacts, ensure design constraints are met, and drive continuous...

A leading technology firm in the United Kingdom is seeking a Senior Backend Developer to support a data platform programme for a global financial services organisation. The successful candidate will design and implement backend services, ensure high levels of automated testing, and integrate with various systems. Mandatory skills include strong experience...

ITRS Group is seeking a Senior Java Software Engineer in London to join the Platform Team. You will work on a core platform of distributed services that ingest and transform observability data for visualisation, analytics and integrations.This is a permanent, full-time role with a hybrid working model from our London office. You will contribute across the...

Job Title Senior Java/FIX Engineer - IG Prime Job Description Prime Java/FIX Engineer So, 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...

Wissen Technology is looking for an Intermediate/Senior Java Engineer to join their team in London, UK. This is a full-time position with a hybrid work model that requires 3 days a week onsite.The ideal candidate will have a solid background in Java programming, experience in enterprise application development, and a passion for innovative solutions....

A fast-growing technology organisation in London is seeking a skilled Java Backend Developer for a full-time permanent role. You will design and maintain backend services and APIs, focusing on security and scalability. The ideal candidate has over 4 years of experience with Java and expertise with Spring Boot. This hybrid role offers a collaborative working...

LexisNexis Risk Solutions is seeking a Senior Software Engineer to design, develop and deliver scalable Java-based applications using modern cloud-native practices. You will collaborate with Product, UX, QA and engineering teams to build robust APIs and services, mentor juniors, and contribute to architectural decisions.The role emphasizes cutting-edge...

Location: Canary Wharf, London - 3 days per week in the officeSalary: Up to £160,000 + benefitsWe're looking for an exceptional Senior JVM Engineer to join a high-performing engineering team in Canary Wharf. This is a hands-on role for an engineer who enjoys solving complex technical problems, building highly scalable systems and working in a strong...

A leading tech recruitment firm in London is looking for a Senior Engineer specializing in AWS and Java. You will design and build serverless features, mentor junior engineers, and lead code reviews. The ideal candidate has experience with distributed systems and a collaborative mindset. This role offers a competitive salary of up to £85,000 and a hybrid...

Zepz is seeking a Senior Backend Engineer (Java) to build scalable backend services in the FinCrime domain, spanning transaction monitoring, screening, and risk scoring. You will own design and implementation of high-throughput systems, collaborating with cross-functional teams to ship reliable services and strong monitoring.You will work in a hybrid model...

Nomura is seeking a Senior Java Software Engineer - Vice President in London to lead end-to-end platform initiatives within Global Markets IT, Equities IT, and Prime Brokerage initiatives. The role combines hands-on coding with strategic technical leadership, driving testing-first practices and incident management across complex systems.You will mentor...

Solirius Ltd. is seeking a Senior Java Engineer to join our engineering team in the UK. You will design, develop and maintain scalable Java applications with a focus on cloud-native microservices and modern software practices. AI-enabled capabilities are highly desirable as we explore advanced solutions.You will collaborate with cross-functional teams,...

Synechron in London is seeking an experienced Senior Java Developer to join a technology team supporting a Client in London. The successful candidate will design, develop, and maintain high-quality, scalable software solutions within a regulated financial-services environment.This role requires strong hands-on expertise in Java development, distributed...

SENIOR SOFTWARE ENGINEER Catapult is building the future of sports performance technology, with a mission to Unleash the Potential of every athlete and team on earth. We don't just work in the sporting industry; we are actively changing it. Since 2006, our solutions have been leading the way in sports performance software, science, and data, in a world where...

HSBC is seeking an experienced Software Engineering Lead to build inhouse onboarding and KYC products across design to production. You will work with product teams to design in a microservice architecture and drive high-cadence delivery, ensuring quality and scalability.The role emphasizes deep Java expertise (prefer Java 17+), PostgreSQL schema design, and...

We are looking for a Lead Software Engineer who will be responsible for the design, development, and deployment of high-quality software solutions.This role involves leading a team of engineers on high-profile projects, ensuring best practices are followed, and driving continuous improvement in software development processes.You will collaborate closely with...