senior java developer jobs in London

We are an industry-leading iGaming and sports betting technology company, building high-throughput, real-time platform solutions that process millions of transactions daily across global markets. We are expanding our engineering division in London and looking for a Senior Java Full-Stack Engineer to take ownership of core betting engines, real-time data...

Job Title: Principal Java DeveloperCorporate Title: Vice PresidentDepartment:Wholesale Data & Operations Technology (WDOT)Location: London (Hybrid Working)Company overviewNomura is a financial services group with an integrated global network.Scroll down to find an indepth overview of this job, and what is expected of candidates Make an application by...

Job ID: 1 Posted: 2026-11-11Location: London, England, United KingdomCategory: ProfessionalCompany: CitiJob DescriptionAbout CitiAs the world’s most global bank, Citi gives you the tools to be a trailblazer.If you think you are the right match for the following opportunity, apply after reading the complete description.We’re not just building technology;...

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....

Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: PermanentPower the platforms behind modern finance. Shape cloud-native solutions with Java at their core.The RoleWe’re seeking a Senior Backend Engineer (Java) to join our Technology & Engineering team. You’ll bring expertise in building robust, scalable, cloud-native...

Direct message the job poster from ArrowsConsultant @ Arrows | UK Contract and Perm | TechnologySenior Software Engineer (backend focus) - Java, Springboot & AWS – paying up to £650/day (Outside IR35) – Hybrid (2x a week - London) – 6 month contractA fast-growing digital banking platform is seeking a Senior Backend Engineer who is passionate about...

Intelligent Steps in City of London is seeking a Senior Java Developer to design and deliver a microservices-based platform. You will own backend services, influence architecture decisions and work with product, QA and DevOps to translate business requirements into reliable software.The role focuses on Java 21 and Spring Boot, REST APIs, Kafka, PostgreSQL...

We’re working with a Crypto trading business looking for a Senior Java Engineer to build and enhance its front-office technology. You’ll develop the systems that support how the business prices trades, monitors its exposure and manages risk. This includes building pricing and quoting functionality, developing automated hedging components and extending...

We are building the financial system for the next century. One where control sits in the hands of customers — not banks. Where money moves on rails that are faster, smarter, and radically more efficient. Where wealth management tools help you grow your savings for decades — and build generational wealth. Where fewer intermediaries mean more value stays...

Exceptional Java engineering, applied where it actually matters.My client — a fast-growing technology joint venture between a global management consulting leader and a global alternative investment fund manager — is hiring a Senior Java Developer to join their technology team, building bespoke systems across banking, financial services and private...

Senior Java / Python Engineer London | Up to £775/day (Inside IR35) or £120,000 Base Salary 5 Days Onsite for the First 6 Months | 4 Days ThereafterThis investments clientis investing heavily in a strategic platform build-out driven by T+1 settlement requirements and continued business growth. We're looking for engineers who enjoy building systems rather...

OverviewSenior Engineer - AWS/Java | Xpertise RecruitmentWhat You'll Be DoingDesigning and building serverless features and microservices in AWSSolving complex engineering challenges with a strategic mindsetLeading code reviews and promoting best practices in performance, security, and maintainabilityDriving Agile delivery and mentoring junior...

Overview Base pay range: Direct message the job poster from Caspian One. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Job title and location Java & low-latency talent specialist | Financial technology markets | FX, Equities & Rates | Delivery Consultant at Caspian One Location: London, UK Business...

Are you a passionate Quality Engineer looking to make an impact at a global leader at the forefront of technological innovation?We are seeking an experienced professional to lead automation testing efforts, with a particular focus on backend and API testing, to join our dynamic team in London.About The RoleAs a Quality Engineer, you will play a key role in...

Overview Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed; finance isn’t what this firm does, tech is. Our client is an innovative tech-driven trading company (Equities and ETFs) with a pioneering big data technology platform. They have assembled a top team from across the...

Role Intermediate and Senior Java Engineer Title Associate/AVP Location London, UK (Day 1 Onsite/Hybrid) – Fulltime Mode of Work 3 days/week onsite required Required Experience 4-8+ years Position Overview We are seeking a highly skilled and motivated Java Engineer to join our dynamic development team. The ideal candidate will have a strong background in...

We are looking for a Senior Java Developer for our client, a well-established, global financial institution undergoing large-scale digital transformation. Working model: Hybrid, with 3 days a week onsite in London. Key responsibilities: • Develop and maintain Java applications using Spring Boot. • Contribute to the design and development of...

Join a high-performing engineering team building the next generation of workflow automation platforms within a global investment banking environment. This team is focused on transforming complex, manual post-trade processes into intelligent, automated workflows. By combining modern software engineering, workflow orchestration and AI-powered document...

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...

Senior Software Engineer - Futures & Options TradingLondon | Front Office Trading TechnologyA leading financial technology firm is looking for a Senior Software Engineer to help build a next-generation Futures & Options Execution Management System (EMS) from scratch.You’ll be:Building low-latency, front-office trading systemsDeveloping exchange...