26 to 50 of 57 Java Software Engineer Jobs in the City of London

market leading Algorithmic Trading firm based in London, specialising in market making and liquidity provision for Exchange Traded Funds. The are looking for a Java Software Engineer to join their engineering group. What You'll Get An opportunity to work in one of the most exciting and … tracking tools. What You'll Need Strong academic background in STEM discipline Strong computer science fundamentals in Design, Algorithms & Data Structures Strong low latency Java engineering skills Rust experience will be beneficial as they will be using it in new projects Familiarity with databases (e.g. SQL Server, Postgres) Familiarity … with developing, testing, or deploying with a Cloud Server Provider (e.g. AWS, GCP, Azure) Experience using version control software (e.g. git) Strong programming ability and testing mindset More ❯

market leading Algorithmic Trading firm based in London, specialising in market making and liquidity provision for Exchange Traded Funds. The are looking for a Java Software Engineer to join their engineering group. What You'll Get An opportunity to work in one of the most exciting and … tracking tools. What You'll Need Strong academic background in STEM discipline Strong computer science fundamentals in Design, Algorithms & Data Structures Strong low latency Java engineering skills Rust experience will be beneficial as they will be using it in new projects Familiarity with databases (e.g. SQL Server, Postgres) Familiarity … with developing, testing, or deploying with a Cloud Server Provider (e.g. AWS, GCP, Azure) Experience using version control software (e.g. git) Strong programming ability and testing mindset More ❯

market leading Algorithmic Trading firm based in London, specialising in market making and liquidity provision for Exchange Traded Funds. The are looking for a Java Software Engineer to join their engineering group. What You'll Get An opportunity to work in one of the most exciting and … tracking tools. What You'll Need Strong academic background in STEM discipline Strong computer science fundamentals in Design, Algorithms & Data Structures Strong low latency Java engineering skills Rust experience will be beneficial as they will be using it in new projects Familiarity with databases (e.g. SQL Server, Postgres) Familiarity … with developing, testing, or deploying with a Cloud Server Provider (e.g. AWS, GCP, Azure) Experience using version control software (e.g. git) Strong programming ability and testing mindset More ❯

Java Developer Java roles available at a fast-growing business finance company based in London, on a mission to simplify funding for SMEs across the UK. By combining innovative technology with a deep understanding of business needs, we help entrepreneurs access the capital they need to thrive. As … we scale our digital product offering, we're looking for a talented Java Developer to help build scalable, cloud-native services at the heart of our platform. As a Java Developer , you’ll join a collaborative, cross-functional engineering team building modern financial products using Spring Boot , Microservices … architecture discussions. Build integrations with third-party financial services (e.g., Open Banking APIs, payment providers). What We’re Looking For: Strong experience with Java 11+ and the Spring ecosystem (Boot, Data, Security, etc.). Proven track record building microservices architectures and REST APIs. Familiarity with Docker , Kubernetes , or More ❯

A leading company in the Renewable Energy space are on the hunt for a Full-Stack Software Engineer to join their highly skilled engineering team! They are a company who are HUGE on innovation and quality engineering and require an experienced set of hands to join their diverse … grow & excel. They heavily promote a collaborative, open & team orientated culture that promotes innovation and forward thinking! They are looking for a Full-Stack Software Engineer who comes with a engineering background using TypeScript, Vue OR React on the Frontend & Kotlin OR Java on the backend. Experience More ❯

A leading company in the Renewable Energy space are on the hunt for a Full-Stack Software Engineer to join their highly skilled engineering team! They are a company who are HUGE on innovation and quality engineering and require an experienced set of hands to join their diverse … grow & excel. They heavily promote a collaborative, open & team orientated culture that promotes innovation and forward thinking! They are looking for a Full-Stack Software Engineer who comes with a engineering background using TypeScript, Vue OR React on the Frontend & Kotlin OR Java on the backend. Experience More ❯

Global Investment Banking firm seeks a VP/SVP/ED/Principal Engineer Level Software Engineer. In this role, you will build the firm's next-generation cross-asset risk calculation system utilising a highly scalable Java Cloud-based architecture. Leading various engineering activities, including design … medium, and long-term changes, with a key focus on public cloud onboarding. The platform is a Greenfield build using modern technologies such as Java, Spring Boot, Kubernetes, Kafka, MongoDB, RabbitMQ, Solace, Apache Ignite. The platform runs in a hybrid mode both on-premises and in AWS utilising technologies … and giving robust critique/feedback Mentoring/coaching junior developers on coding/architecture approaches and best practices Skills required Expert knowledge of Java based distributed systems, including event-driven architecture Expert knowledge of Java, JVM, memory management, garbage collection Expert knowledge of Spring, SpringBoot framework and More ❯

Global Investment Banking firm seeks a VP/SVP/ED/Principal Engineer Level Software Engineer. In this role, you will build the firm's next-generation cross-asset risk calculation system utilising a highly scalable Java Cloud-based architecture. Leading various engineering activities, including design … medium, and long-term changes, with a key focus on public cloud onboarding. The platform is a Greenfield build using modern technologies such as Java, Spring Boot, Kubernetes, Kafka, MongoDB, RabbitMQ, Solace, Apache Ignite. The platform runs in a hybrid mode both on-premises and in AWS utilising technologies … and giving robust critique/feedback Mentoring/coaching junior developers on coding/architecture approaches and best practices Skills required Expert knowledge of Java based distributed systems, including event-driven architecture Expert knowledge of Java, JVM, memory management, garbage collection Expert knowledge of Spring, SpringBoot framework and More ❯

JAVA DEVELOPER – FINTECH STARTUP High-Growth Fintech – Asset Management Software London (Hybrid – 2 days in office/week) Quant Capital is urgently looking for a Core Java Developer to join a innovative FinTech business developing next-generation asset management platforms for professional investors. The firm operates as … a lean, high-performance engineering team focused on solving complex industry problems through clean, scalable code and modern infrastructure. We’re looking for a Java Developer who’s ready to work across the stack and get deeply involved in architectural design, backend performance, and infrastructure scaling. Role Overview This … is a hands-on software engineering role in a startup-style environment, ideal for someone who enjoys technical autonomy, rapid iteration, and product ownership. You’ll work directly with experienced engineers and stakeholders to enhance a cutting-edge platform used by institutional clients. Key Responsibilities Design, build, and maintain More ❯

JAVA DEVELOPER – FINTECH STARTUP High-Growth Fintech – Asset Management Software London (Hybrid – 2 days in office/week) Quant Capital is urgently looking for a Core Java Developer to join a innovative FinTech business developing next-generation asset management platforms for professional investors. The firm operates as … a lean, high-performance engineering team focused on solving complex industry problems through clean, scalable code and modern infrastructure. We’re looking for a Java Developer who’s ready to work across the stack and get deeply involved in architectural design, backend performance, and infrastructure scaling. Role Overview This … is a hands-on software engineering role in a startup-style environment, ideal for someone who enjoys technical autonomy, rapid iteration, and product ownership. You’ll work directly with experienced engineers and stakeholders to enhance a cutting-edge platform used by institutional clients. Key Responsibilities Design, build, and maintain More ❯

Senior Java Developers - Java/Vert.x/Webflux We are looking for 2 x Java Developers with strong Vert.x/Webflux to work on a multi-year project. Stack - Java, AWS, TDD, Vert.x/Webflux. 2 days a week in London 6 month rolling contract More ❯

Java Developer Join our dynamic team at mthree working with a major investment bank, where we are committed to delivering innovative risk management solutions. We are seeking a talented Java Developer with expertise in multithreading and concurrency to help us build robust, high-performance applications that drive Equity … Trading strategies. Key Responsibilities: Design, develop, and maintain Java 17 applications with a focus on multithreading and concurrency. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Help maintain code quality … code reviews and contribute to team knowledge sharing. Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. Proven experience as a Java Developer (v11+), with an understanding of multithreading and concurrency. Solid knowledge of object-oriented programming and design patterns. Good grasp of relational and NoSQL More ❯

Java Developer Join our dynamic team at mthree working with a major investment bank, where we are committed to delivering innovative risk management solutions. We are seeking a talented Java Developer with expertise in multithreading and concurrency to help us build robust, high-performance applications that drive Equity … Trading strategies. Key Responsibilities: Design, develop, and maintain Java 17 applications with a focus on multithreading and concurrency. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Help maintain code quality … code reviews and contribute to team knowledge sharing. Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. Proven experience as a Java Developer (v11+), with an understanding of multithreading and concurrency. Solid knowledge of object-oriented programming and design patterns. Good grasp of relational and NoSQL More ❯

Java Developer Join a fast-paced, high-performance FX trading firm in the heart of London. Specialising in delivering low-latency, high-throughput trading solutions to institutional clients across global currency markets. With a tech-first culture and a flat structure, engineers are empowered to innovate and take ownership … of mission-critical systems. We are looking for a talented Java Developer with strong multithreading and concurrency experience to join our Core Engineering team. You will work closely with quants, traders, and other developers to build and maintain ultra-low-latency trading applications and real-time market data systems. … Key Responsibilities: Design and develop high-performance Java applications for FX pricing, trading, and risk. Optimise and maintain multithreaded systems to support low-latency execution. Work with large-scale, high-throughput messaging systems (e.g., FIX, Kafka). Collaborate with cross-functional teams to deliver robust, scalable software solutions. More ❯

Senior Backend Java Developer This is an office-based role in London, Monday to Friday Financial Services £70,000 - £80,000 Are you an experienced Java Developer looking for a truly impactful role? My client, a leading FCA-regulated trading brokerage, is building a brand-new, best-in … and seamlessly integrate third-party services. Actively contribute to code reviews and troubleshoot production issues. What we're looking for: Minimum 8 years of Java development experience. Strong expertise in Enterprise Java, Spring/Spring Boot, Web, Security, ORM, Junit/Mockito, Maven/Gradle. Command of SQL … with the expanding team. Innovative Culture: Be part of a unique startup culture within a well-established group, embracing AI applications in finance and software development. Excellent Benefits: Competitive salary, performance bonus, private healthcare, gym discount, pension scheme, and a collaborative environment. Candidates must be eligible to work in More ❯

Senior Backend Java Developer This is an office-based role in London, Monday to Friday Financial Services £70,000 - £80,000 Are you an experienced Java Developer looking for a truly impactful role? My client, a leading FCA-regulated trading brokerage, is building a brand-new, best-in … and seamlessly integrate third-party services. Actively contribute to code reviews and troubleshoot production issues. What we're looking for: Minimum 8 years of Java development experience. Strong expertise in Enterprise Java, Spring/Spring Boot, Web, Security, ORM, Junit/Mockito, Maven/Gradle. Command of SQL … with the expanding team. Innovative Culture: Be part of a unique startup culture within a well-established group, embracing AI applications in finance and software development. Excellent Benefits: Competitive salary, performance bonus, private healthcare, gym discount, pension scheme, and a collaborative environment. Candidates must be eligible to work in More ❯

JAVA DEVELOPER – FINTECH STARTUP High-Growth Fintech – Asset Management Software London (Hybrid – 2 days in office/week) Quant Capital is urgently looking for a Core Java Developer to join a innovative FinTech business developing next-generation asset management platforms for professional investors. The firm operates as … a lean, high-performance engineering team focused on solving complex industry problems through clean, scalable code and modern infrastructure. We’re looking for a Java Developer who’s ready to work across the stack and get deeply involved in architectural design, backend performance, and infrastructure scaling. Role Overview This … is a hands-on software engineering role in a startup-style environment, ideal for someone who enjoys technical autonomy, rapid iteration, and product ownership. You’ll work directly with experienced engineers and stakeholders to enhance a cutting-edge platform used by institutional clients. Key Responsibilities Design, build, and maintain More ❯

Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + Overview: We are seeking an … experienced Java Developer to join a high-profile investment banking client in London on a contract basis. The successful candidate will work on an Electronic Trading Platform for the FIC business . This is an exciting opportunity to contribute to the development and integration of advanced trading technologies in … making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge More ❯

Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + Overview: We are seeking an … experienced Java Developer to join a high-profile investment banking client in London on a contract basis. The successful candidate will work on an Electronic Trading Platform for the FIC business . This is an exciting opportunity to contribute to the development and integration of advanced trading technologies in … making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge More ❯

Senior Backend Java Developer This is an office-based role in London, Monday to Friday Financial Services £70,000 - £80,000 Are you an experienced Java Developer looking for a truly impactful role? My client, a leading FCA-regulated trading brokerage, is building a brand-new, best-in … and seamlessly integrate third-party services. Actively contribute to code reviews and troubleshoot production issues. What we're looking for: Minimum 8 years of Java development experience. Strong expertise in Enterprise Java, Spring/Spring Boot, Web, Security, ORM, Junit/Mockito, Maven/Gradle. Command of SQL … with the expanding team. Innovative Culture: Be part of a unique startup culture within a well-established group, embracing AI applications in finance and software development. Excellent Benefits: Competitive salary, performance bonus, private healthcare, gym discount, pension scheme, and a collaborative environment. Candidates must be eligible to work in More ❯

Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + Overview: We are seeking an … experienced Java Developer to join a high-profile investment banking client in London on a contract basis. The successful candidate will work on an Electronic Trading Platform for the FIC business . This is an exciting opportunity to contribute to the development and integration of advanced trading technologies in … making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge More ❯

Java Developer Join our dynamic team at mthree working with a major investment bank, where we are committed to delivering innovative risk management solutions. We are seeking a talented Java Developer with expertise in multithreading and concurrency to help us build robust, high-performance applications that drive Equity … Trading strategies. Key Responsibilities: Design, develop, and maintain Java 17 applications with a focus on multithreading and concurrency. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Help maintain code quality … code reviews and contribute to team knowledge sharing. Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. Proven experience as a Java Developer (v11+), with an understanding of multithreading and concurrency. Solid knowledge of object-oriented programming and design patterns. Good grasp of relational and NoSQL More ❯

will have the following experience Highly experienced back end developer, with experience in working on Government or Defence applications (DV Cleared) Experienced developer within Java, TypeScript, JavaScript and/or Python Build solutions as part of a DevSecOps and Agile ecosystem DV Cleared Within this role, you will be More ❯

will have the following experience Highly experienced back end developer, with experience in working on Government or Defence applications (DV Cleared) Experienced developer within Java, TypeScript, JavaScript and/or Python Build solutions as part of a DevSecOps and Agile ecosystem DV Cleared Within this role, you will be More ❯

will have the following experience Highly experienced back end developer, with experience in working on Government or Defence applications (DV Cleared) Experienced developer within Java, TypeScript, JavaScript and/or Python Build solutions as part of a DevSecOps and Agile ecosystem DV Cleared Within this role, you will be More ❯