senior java developer jobs in London

ARQ is building the next generation fintech platform with a focus on fast, scalable backend systems. We are seeking a Lead Software Engineer (Java) to own the backend stack, design robust APIs, and accelerate delivery with a pragmatic approach to TDD and CI/CD.Join a world-class team in London with a hybrid work model and stock options that let you share in...

Adaptive is hiring a Senior Java Distributed Systems Engineer to help build Aeron Sequencer, our state-machine replication technology for capital markets. You will design and implement distributed systems, write maintainable Java, and evolve messaging protocols, while contributing to product decisions and technical discussions.The role involves on-call...

Zensar in London is seeking an Experienced Java Technical Lead to steer design, development and delivery of enterprise-grade applications. The role demands strong hands-on expertise in Java technologies, solution design, and team leadership.You will work across microservices, REST APIs, and cloud platforms (Azure or AWS), while guiding architecture decisions...

Quant Capital is hiring for a mid-to-senior Java-focused backend role in London. You will primarily develop Java backend services and APIs, with secondary responsibility owning straightforward Python ETL and data ingestion into AWS and PostgreSQL.You will write clean, well-tested code, participate in reviews, and help ensure production reliability through...

A leading software development company in London is seeking a Senior Java/Kotlin Engineer to join their high-impact product engineering team. In this hybrid role, you will design scalable backend services and influence technical direction. Ideal candidates will have extensive experience with Java/Kotlin, AWS, and distributed systems. You will benefit from a...

HKEX Group in London seeks a Senior Engineer to advance the LMEsmart platform. You will design high-throughput, low-latency inter-office integrations, automate test tooling, and drive real-time performance insights for governance and market oversight.You will work in a cloud-enabled environment, employing Java (JVM), distributed systems and container...

J.P. Morgan is seeking a Senior Lead Software Engineer to join the Platform team in London. You will be a hands-on backend engineer focusing on a Spring Boot based framework and libraries that support Investments' product engineering teams.You will bring deep Java expertise, work with SDLC and Infrastructure teams, and drive standardisation and best...

IG Group is seeking a Senior Software Engineer to own and evolve the Order Management System (OMS) within our trading platform. You will design and build Java services focused on correctness and low latency, coordinating with traders and stakeholders to ensure reliable order routing and state management.You'll work in a small, cross-functional team,...

JPMorgan Chase & Co. is seeking a Senior Lead Software Engineer to drive the design, development, and delivery of trusted technology products in a secure and scalable manner.You will lead code construction, review peers, and guide architectural decisions across multiple tech stacks. You will influence product design, operations, and engineering culture while...

Mastercard Inc. is seeking a Senior Software Engineer to lead the design, development, and delivery of secure, enterprise-grade software solutions. You will define requirements, guide implementation to Mastercard standards, and mentor team members across the SDLC.The role emphasizes technical leadership, solution design, and collaboration with stakeholders...

Broadridge Financial Solutions is seeking a Principal Engineer – Full Stack Java in London. You will set the technical direction for the International Processing Engine, lead the design of back-end services, REST APIs, and integrations, and partner with architecture, product, and client stakeholders to shape roadmaps.The role requires deep hands-on Java...

Entelect is seeking a Java Technical Lead to drive delivery across web and mobile platforms for esteemed organisations. You will combine software engineering excellence with strategic leadership to influence architecture, design decisions, and mentoring across cross-functional teams.You will engage in full SDLC, lead technical decision-making, and promote...

Company Description Version 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate the rapidly evolving technology landscape. We foster strong partnerships with global technology leaders including...

Join to apply for the Senior Frontend Developer role at Applied Data Science PartnersJoin to apply for the Senior Frontend Developer role at Applied Data Science PartnersWe’re looking for a Senior Frontend Developer who’s passionate about building beautifully crafted, high-performance user interfaces. You’ll play a key role in shaping the user...

Senior Developer (ServiceNow) Office location with Hybrid working: Hammersmith About the role and the Team We are seeking a talented and experienced ServiceNow Senior Developer to join our team and play a key role in designing, building, and operating our high-quality ServiceNow implementation. This role requires a strong background in ServiceNow...

Excellent opportunity for a Senior Software Developer to play a key role in architecting, developing, and enhancing our clients in-house trading and research systems.This is an opportunity to work on greenfield projects, influence architectural decisions, and directly impact systems that support real-world trading strategies. As a senior member of the team,...

Get AI-powered advice on this job and more exclusive features.Direct message the job poster from Peaple TalentSenior C++ Developer | Remote | Permanent | Up to £85,000 Per Annum (Dependant on Experience)Peaple Talent have partnered with a consultancy client looking to recruit a Senior C++ Developer.In this position, you’ll collaborate with multiple...

About RWS RWS is a content solutions company, powered by technology and human expertise. We grow the value of ideas, data and content by making sure organizations are understood. Everywhere. About RWS RWS is a content solutions company, powered by technology and human expertise. We grow the value of ideas, data and content by making sure organizations are...

Senior Backend PHP Developer £500 per day (12 Months+ / Option of working from Remote / Outside IR35) Seasoned PHP developer to work on a new Greenfield backend REST API for the transport industry and help implement it. You will be working alongside a Senior API Engineer in a smaller, long established, non-corporate and friendly agency outside of IR35...

2 days ago Be among the first 25 applicantsIf you're interested in progressing your career in developing innovative tools and being part of a hands-on, collaborative, project-based approach to solving data challenges, then we'd love to hear from you.The "Special Projects" team is Quick Release's in-house software development centre-of-excellence, developing...