26 to 50 of 122 Senior Java Engineer Jobs in London

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 ...

Deutsche Bank is seeking a Senior Java Engineer for a Front Office/Fixed Income focused role in London. The contract runs for 6 months with hybrid work (in-office three days per week). You will develop and enhance trading systems, implement robust solutions, and contribute … shared codebase with emphasis on performance, scalability, and reliability. The ideal candidate has strong Java backend experience (Spring Boot), solid knowledge of Fixed Income trading workflows, and familiarity with #J-18808-Ljbffr ...

Contract Role – Senior/Lead AI Software Engineer Java & Python x 2 – London/Hybrid – 12 months initial – Inside IR35 PAYE Role Overview: Job Title: Senior/Lead AI Software Engineer Java & Python Location: Hybrid – 4 days onsite per week in London Contract Type … Contract Duration: 12 months initial Rate: £ per day Inside IR35 Strong Java and Python development skills in mission-critical applications required. Proven experience building AI-based solutions in enterprise environments, including both machine learning and generative AI use cases, is highly desirable. Strong understanding ...

Senior Full Stack Engineer (Java & React)Location: London, United Kingdom or Glasgow, Scotland (Hybrid)Help Build the Future of global STEM workforce solutionsWe're reimagining how organisations connect talent, technology, and opportunity.Our team is building the next-generation AI digital platform, automation, cloud-native architecture, and modern … engineering practices. This platform is designed to transform workforce engagement at scale through intelligent workflows, seamless integrations, and data-driven experiences.As a Senior Full Stack Engineer, you'll play a critical role in designing and delivering products that directly influence customer experience, business growth, and the future direction ...

Citi is seeking a Senior Java Software Engineer for FX Options Risk. You will design, develop, and optimize a high-throughput, real-time risk system in a front-office facing role and collaborate closely with the FX Options trading desk to translate business needs into scalable software … solutions. You will contribute hands-on development using Core Java, Kafka, CouchbaseDB, and Apache Storm, while mentoring engineers and shaping architectural direction for the bank's risk platform. #J-18808-Ljbffr ...

Citi is seeking a Senior Java Software Engineer for FX Options Risk (VP) to design, develop, and optimize our high-throughput, real-time risk system. You will work on low-latency processing, collaborate with the FX Options Trading desk, and guide the team with architectural excellence. … role requires deep Core Java expertise, experience with real-time streaming, and familiarity with containerization and cloud platforms. A hybrid work model and comprehensive benefits are offered. #J-18808-Ljbffr ...

ITRS Group in London is seeking a Senior Java Software Engineer to join the Platform Team. You will help build the core platform that ingests and transforms observability data for multiple applications, working on a hybrid schedule from our London office. You will participate in all phases ...

Senior Java Software Engineer – FX Options Risk (VP) This position is responsible for designing, developing, and optimizing our mission-critical, high-throughput FX real-time risk system. As a SeniorSoftwareEngineer, you will leverage your deep technical expertise to drive the architectural evolution of low-latency processing systems … adhere to corporate security, scalability, and stability standards to safeguard Citigroup, its clients, and assets. Hands-on Development Contribute hands-on as a primary engineer utilizing our modern tech stack: Core Java (multi-threading, concurrency, memory optimization),CouchbaseDB, Kafka, and Apache Storm. Solve complex real-time risk calculation ...

Senior Software Engineer, Quant trading – Python, JavaLondon (Hybrid)130,000-175,000 + benefits and bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client.My client, a leading player in the global cryptoassets industry, is seeking a talented Senior Software Engineer to join their dynamic team. This role will be instrumental in building and supporting a diverse technology stack, enabling my client to trade across multiple exchanges and regions with a wide range of strategies.As a Senior Software Engineer, you will work closely with ...

Senior Software Engineer, Quant trading – Python, JavaLondon (Hybrid)130,000-175,000 + benefits and bonusQuant Capital is urgently looking for a Senior Software Engineer to join our high profile client. My client, a leading player in the global cryptoassets industry, is seeking a talented Senior Software Engineer to join their dynamic team. This role will be instrumental in building and supporting a diverse technology stack, enabling my client to trade across multiple exchanges and regions with a wide range of strategies. As a Senior Software Engineer, you will work closely with ...

Systems, Inc. is seeking a Senior/Intermediate Java Engineer to join its R&D team in a hybrid London/Newry/Belfast role. Focus on backend and middleware development with Java 17 and Spring, integrating with kdb+ in a distributed, high-availability system. ...

Pound Sterling Occupational Categories: Government Industry(ies): Consulting Services,Government/Civil Services,Information Technology,Recruiting/Staffing,Software,Telecommunications Are you an experienced Senior Software Engineer or Technical Lead who enjoys remaining hands-on while guiding teams and shaping technical solutions? A leading specialist technical consultancy … software engineersDesigning, developing and testing bespoke software solutionsProviding technical direction and communicating clearly with clientsProducing solution architectures and technical designsBuilding full-stack applications using Java, JavaScript, React and TypeScriptDesigning and deploying cloud-based solutions, primarily using AWSCreating continuous integration pipelines using tools such as GitLabWorking across the full software ...

Bounteous, a global AI Services firm, seeks a Senior Java Developer for a hybrid Glasgow role (3 days in office). Bring 4–12 years’ experience to design, build, and scale Java-based AI-enabled applications. You will work with Java 17, Kafka, Spring Boot ...

raised capital from some of the world's best investors: Sequoia Capital, Founders Fund, Brevan Howard Digital, Y Combinator, and Kaszek Ventures. Senior Software Engineer (Java) Location London Employment Type Full time Location Type Hybrid Department About ARQ ARQ is one of the fastest-growing fintechs … chance to grow fast with a world-class team, ARQ is the place to do it. What we're looking for As a Backend Engineer, you'll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You'll collaborate with a talented ...

Bullish, Inc. is seeking a Senior Engineer for Trading Product Engineering in London. You will design and deliver low-latency Java code powering the Bullish Exchange, working across a hybrid architecture that blends a Central Limit Order Book with proprietary market making. You will optimize performance, expand ...

Virtual Hire Staffing is seeking a Mid/Senior Java Web Engineer for a leading global financial markets infrastructure client in London. The role involves hands-on work across backend services and web UI, delivering a modular end-to-end trade management platform in collaboration with architects … frontend developers. Requirements include strong Java with Spring Boot, REST APIs, React knowledge, SQL/PostgreSQL, Git, and Maven/Gradle; 4–8+ years of experience; and an Agile, Linux/Unix #J-18808-Ljbffr ...

latest technology to connect with them quickly, efficiently and wherever possible in highly personalised ways. Job Description We’re looking for a Senior Engineer to join our Group Protection technology team. This is an exciting opportunity to play a key role in shaping and delivering modern cloud-based … technical excellence Contributing to architectural decisions, reducing technical debt and improving platform sustainability Who we're looking for: Strong commercial experience developing software using Java and JavaScript/TypeScript Experience building and supporting RESTful microservices in Spring Boot, Node.js or similar frameworks Solid understanding of cloud technologies, ideally Azure ...

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 ...

Hawk-Eye Innovations Ltd. seeks a Principal Java Engineer to lead backend architecture for a new sports technology product. This hybrid role requires expertise in building high-performance, low-latency systems for real-time data. Candidates should have a strong background in Java and experience with cloud ...

Cognizant is seeking a highly technical, hands-on Senior Java Web Engineer to join an engineering team building enterprise-scale applications. You will maintain and enhance backend services and web interfaces while contributing to modern digital platforms and UI components. In a collaborative Agile environment, you will ...

99108127280Posted: 2026-08-21Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiSenior Java Software Engineer – FX Options Risk (VP)This position is responsible for designing, developing, and optimizing our mission-critical, high-throughput FX real-time risk system. As a Senior Software Engineer … adhere to corporate security, scalability, and stability standards to safeguard Citigroup, its clients, and assets. Hands-on Development Contribute hands-on as a primary engineer utilizing our modern tech stack: Core Java (multi-threading, concurrency, memory optimization), CouchbaseDB, Kafka, and Apache Storm. Solve complex real-time risk calculation ...

JPMorganChase is seeking a Senior Java Developer for Equities Sales OMS as part of a global team supporting electronic business. The role emphasizes building secure, scalable systems with AI-assisted development tools in a London-based environment. The Senior Lead Software Engineer will provide technical guidance ...

achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist. Role Overview TP ICAP are looking for a Senior Java Developer delivering low‐latency, highly available trading system components with deep expertise in Java, FIX connectivity, and distributed real‐time messaging. … will be responsible for designing, building, and optimising mission‐critical trading services across multiple asset classes. Role Responsibilities Design and implement distributed, fault‐tolerant Java services for electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability ...

Senior Software Engineer I (Java & JavaScript)Do you enjoy designing and developing scalable, high-performance applications using Java and JavaScript 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 … line, and provides direct input to project plans, schedules, and methodology in the development of cross-functional software products under the guidance of more senior members of the squad. This position performs software design - typically across multiple components; develops the skills of mentoring more junior members of the team ...

White City (London) client is looking for two experienced Senior Java Software Engineers to join its Technology team on an Inside IR35 contract. This is a hybrid role with once a week office visits. You'll design, develop and deliver high-quality software solutions, working closely with architects … also lead technical discussions, champion engineering best practices, mentor junior developers and contribute throughout the full software development lifecycle. You must have - Strong Java development experience. Object-oriented programming expertise. Scripting with Python, Bash or Ruby. Strong experience with TDD/BDD and automated testing. Excellent communication and collaboration ...