51 to 73 of 73 Java Software Engineer Jobs in London

Join a Tier 1 Investment bank in their leading global FX trading platform as a Java Engineer, contributing to the backbone of ultra-low latency systems powering high-volume electronic trading. This role focuses on building high-performance, globally distributed Java services that enable real-time transaction … performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and code quality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization Familiar with modern SDLC tools ...

Java Developer Join a high-impact Core Technology team at a leading hedge fund. About the Company This firm is a major player in the space, a multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep financial expertise … with advanced software engineering to manage institutional capital globally. What You’ll Do Design and build high impact internal systems using Java Own projects end-to-end: from architecture to deployment Collaborate with analysts to solve real-world business problems Support and mentor junior team members on coding ...

Java Developer Join a high-impact Core Technology team at a leading hedge fund. About the Company This firm is a major player in the space, a multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep financial expertise … with advanced software engineering to manage institutional capital globally. What You’ll Do Design and build high impact internal systems using Java Own projects end-to-end: from architecture to deployment Collaborate with analysts to solve real-world business problems Support and mentor junior team members on coding ...

working at BGC partners provides opportunities to develop skills, make an impact and grow at an accelerated pace. Role Summary – Senior Middle Office Backend Software Engineer GBX is BGC’s flagship platform for electronic trading solutions in the Credit and Rates markets. Used by thousands of brokers … include system reliability, testability, recoverability, automation, throughput and latency. Our engineers are analytical thinkers and have a strong understanding of computer science fundamentals and software engineering. You will be exposed to multiple financial markets and market structures, have the opportunity work on scaling a real-time system with ...

Senior Developer – London 2 days a week/3 days remote | Software Engineering A growing tech organisation is looking for a Senior Developer to join its Software Engineering team in London. This is a great opportunity for a hands-on technologist who enjoys solving complex problems, working … large-scale enterprise systems, and delivering high-quality software solutions. In this role, you’ll contribute to technical design, end-to-end development, and delivery of enhancements across a suite of core enterprise products. You’ll work closely with architects, project managers, and cross-functional teams, while also mentoring ...

Senior Developer – London 2 days a week/3 days remote | Software Engineering A growing tech organisation is looking for a Senior Developer to join its Software Engineering team in London. This is a great opportunity for a hands-on technologist who enjoys solving complex problems, working … large-scale enterprise systems, and delivering high-quality software solutions. In this role, you’ll contribute to technical design, end-to-end development, and delivery of enhancements across a suite of core enterprise products. You’ll work closely with architects, project managers, and cross-functional teams, while also mentoring ...

Core Java Developer Job Type: Contract (INSIDE IR35) Sector: Financial Services Location: London (Hybrid 8 days per month onsite) Duration: 12 months (scope for extension) Rate: £550 - £600 per day (INSIDE IR35) We are specifically seeking individuals with strong Core Java expertise, as these roles primarily involve server … successful candidate will have demonstrable solutions design and development skills and experience alongside validated strong systems development experience at all stages of the software delivery lifecycle. Technical Skills: Strong systems development experience at all stages of systems development covering design, development, testing, live implementation and post implementation support. Strong ...

Core Java Developer Job Type: Contract (INSIDE IR35) Sector: Financial Services Location: London (Hybrid 8 days per month onsite) Duration: 12 months (scope for extension) Rate: £550 - £600 per day (INSIDE IR35) We are specifically seeking individuals with strong Core Java expertise, as these roles primarily involve server … successful candidate will have demonstrable solutions design and development skills and experience alongside validated strong systems development experience at all stages of the software delivery lifecycle. Technical Skills: Strong systems development experience at all stages of systems development covering design, development, testing, live implementation and post implementation support. Strong ...

month) to either London, Manchester, Newcastle, or Glasgow. You will be able to pick a location nearest to you. As a Senior Java Full Stack Engineer, you'll work on complex, high-visibility projects—building modern, scalable digital products that drive real business change. You'll collaborate closely … with multidisciplinary teams and gain exposure to a wide variety of technologies, including Java, Spring Boot, Kotlin, Node.js, React, microservices, Docker, CI/CD pipelines, and cloud platforms (AWS/Azure). What We're Looking For Required 5 years commercial software engineering experience Strong experience building microservices ...

Senior Java Developer – London (Hybrid: 2 Days Onsite) We’re partnering with a leading global organisation that is scaling its engineering function and looking for a Senior Java Developer to join their London team. If you’re passionate about building data-driven platforms, enjoy solving complex challenges … want to work with modern cloud-native technologies, this is the role for you. What You’ll Be Doing Designing, developing, and maintaining scalable Java applications using strong OOP principles. Playing an active role in requirements gathering and design workshops , contributing ideas and identifying gaps. Mentoring and pairing with ...

Senior Java Developer – London (Hybrid: 2 Days Onsite) We’re partnering with a leading global organisation that is scaling its engineering function and looking for a Senior Java Developer to join their London team. If you’re passionate about building data-driven platforms, enjoy solving complex challenges … want to work with modern cloud-native technologies, this is the role for you. What You’ll Be Doing Designing, developing, and maintaining scalable Java applications using strong OOP principles. Playing an active role in requirements gathering and design workshops , contributing ideas and identifying gaps. Mentoring and pairing with ...

Junior Core Java Developer – Trading £70,000 Plus Large Prop Bonus 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 … order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 2-4 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp ...

candidate will bring proven expertise in AWS services, particularly with AWS CDK, alongside strong experience in DevOps and CI/CD pipelines. Proficiency in Java microservices development and test driven development (TDD) is essential, as is hands on experience in component migrations. A proactive and detail-oriented approach will … vital to ensure smooth transitions from legacy systems to scalable, reliable, and future-proof solutions. In addition, experience with software testing practices, Agile methodologies (Scrum or Kanban), and defensive programming techniques will be highly desirable. We are looking for someone who thrives in collaborative, fast-paced teams ...

client is a fast-growing technical consultancy known for delivering bespoke software engineering on complex, high-impact programmes across the UK public sector. Their culture is flat, collaborative, and delivery-focused. Engineers are trusted to make informed decisions, work closely with stakeholders, and develop solutions from concept to production. … genuinely matters. You’ll join an agile, client-embedded team delivering modern, scalable systems. Your work will include: Designing and building backend services using Java (12+) and Spring Boot Contributing to front-end development (ideally Angular, though React is welcome) Working across the full SDLC: requirements, build, test, deploy ...

client is a fast-growing technical consultancy known for delivering bespoke software engineering on complex, high-impact programmes across the UK public sector. Their culture is flat, collaborative, and delivery-focused. Engineers are trusted to make informed decisions, work closely with stakeholders, and develop solutions from concept to production. … genuinely matters. You’ll join an agile, client-embedded team delivering modern, scalable systems. Your work will include: Designing and building backend services using Java (12+) and Spring Boot Contributing to front-end development (ideally Angular, though React is welcome) Working across the full SDLC: requirements, build, test, deploy ...

release management. Respond to real-time trading issues in a fast-paced environment, ensuring minimal business disruption. Key Skills & Experience: Strong expertise in Core Java, Spring Framework/Spring Boot, or similar backend frameworks. Proven experience designing and developing API-based, microservices-driven architectures. Solid understanding of multi-threaded ...

banking, iGaming, startups, or enterprise companies performing real time processing. Experience You will be expected to have the following: 6+ years commercial experience with Java Good understanding of JVM (memory model, concurrency, data structures) Spring framework, Spring Boot Maven Knowledge of REST APIs & Microservices MongoDB JUnit and TDD Nice ...

banking, iGaming, startups, or enterprise companies performing real time processing. Experience You will be expected to have the following: 6+ years commercial experience with Java Good understanding of JVM (memory model, concurrency, data structures) Spring framework, Spring Boot Maven Knowledge of REST APIs & Microservices MongoDB JUnit and TDD Nice ...

Client, a Tier 1 Investment Bank, is looking for a Front Office Java Developer to join their leading Equities Trading team to work directly with the business. You'll be sat on the trade floor, working with Traders/Quants to build high quality, complex, mission-critical systems through … high quality (not necessarily LL) Java development, and continue the success of their high-value Global Equities trading team, which has gained lots of focus from the Head of Trading. Benefits: Competitive compensation + bonus Working alongside the best engineers in the space, with exposure to Head Ofs, Traders ...

Client, a Tier 1 Investment Bank, is looking for a Front Office Java Developer to join their leading Equities Trading team to work directly with the business. You'll be sat on the trade floor, working with Traders/Quants to build high quality, complex, mission-critical systems through … high quality (not necessarily LL) Java development, and continue the success of their high-value Global Equities trading team, which has gained lots of focus from the Head of Trading. Benefits: Competitive compensation + bonus Working alongside the best engineers in the space, with exposure to Head Ofs, Traders ...

boot Developer Location: London, UK Contract: 6 - 12months (InsideIR35) Experience: 7+ Years About the Role: We are looking for a highly skilled Full Stack Engineer with strong backend expertise in Spring Boot, Kubernetes (EKS), and AWS Redshift, coupled with familiarity in mobile application development (iOS/Android native). ...

partnering with a leading global trading firm to hire a Low-Latency Software Engineer. This is a rare opportunity to work on ultra-low-latency systems that process market data and execute trades at sub-millisecond speeds — the backbone of high-frequency trading and algorithmic strategies. The Role … join a small, elite engineering team responsible for: Designing and implementing low-latency, high-throughput trading infrastructure in C++ and Java Optimising network protocols, messaging systems, and concurrency models for minimal latency Developing and maintaining real-time data feeds, order routing, and execution engines Profiling, benchmarking, and tuning performance ...

partnering with a leading global trading firm to hire a Low-Latency Software Engineer. This is a rare opportunity to work on ultra-low-latency systems that process market data and execute trades at sub-millisecond speeds — the backbone of high-frequency trading and algorithmic strategies. The Role … join a small, elite engineering team responsible for: Designing and implementing low-latency, high-throughput trading infrastructure in C++ and Java Optimising network protocols, messaging systems, and concurrency models for minimal latency Developing and maintaining real-time data feeds, order routing, and execution engines Profiling, benchmarking, and tuning performance ...