19 of 19 Senior Java Engineer Jobs in the City of London

Senior Full Stack Java Engineer - Java, TypeScript, AWS, MySQL, NoSql, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office near Notting Hill) Senior Full Stack Java Engineer :- You will be joining a fast-growing, research-driven company building an … machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The senior Java Full Stack engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build … companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and modern JS frameworks and likely to have good AWS and Microservices experience. Core skills for the Senior Full Stack Engineer : 5yrs+ More ❯

Senior Full Stack Java Engineer - Java, TypeScript, AWS, MySQL, NoSql, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office near Notting Hill) Senior Full Stack Java Engineer :- You will be joining a fast-growing, research-driven company building an … machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The senior Java Full Stack engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build … companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and modern JS frameworks and likely to have good AWS and Microservices experience. Core skills for the Senior Full Stack Engineer : 5yrs+ More ❯

Senior Java Engineer – Kafka & Spring Boot About the Client We’re working with an innovative team building the next generation of secure, real-time communication and data platforms. Their flagship product is a fresh reimagining of an existing system, crafted to provide robust, distributed coordination for a … but in-person attendance is only occasionally required for team meetups or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure … reliable backend services that keep people and teams connected when it matters most. Your Day-to-Day 🛠️ Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Senior Java Engineer – Kafka & Spring Boot About the Client We’re working with an innovative team building the next generation of secure, real-time communication and data platforms. Their flagship product is a fresh reimagining of an existing system, crafted to provide robust, distributed coordination for a … but in-person attendance is only occasionally required for team meetups or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure … reliable backend services that keep people and teams connected when it matters most. Your Day-to-Day 🛠️ Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep … experience across Java and Ruby . This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU … Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep … experience across Java and Ruby . This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU … Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep … experience across Java and Ruby . This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU … Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and More ❯

Senior Java Engineer – Kafka & Spring Boot About the Client We’re working with an innovative team building the next generation of secure, real-time communication and data platforms. Their flagship product is a fresh reimagining of an existing system, crafted to provide robust, distributed coordination for a … but in-person attendance is only occasionally required for team meetups or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure … reliable backend services that keep people and teams connected when it matters most. Your Day-to-Day 🛠️ Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Senior Java Engineer – Kafka & Spring Boot About the Client We’re working with an innovative team building the next generation of secure, real-time communication and data platforms. Their flagship product is a fresh reimagining of an existing system, crafted to provide robust, distributed coordination for a … but in-person attendance is only occasionally required for team meetups or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure … reliable backend services that keep people and teams connected when it matters most. Your Day-to-Day 🛠️ Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Senior Software Engineer – Java Backend London (5 days onsite, with some ad-hoc flexibility) £85,000 – £120,000 (Permanent) TechHeads is currently seeking a Senior Software Engineer with strong Java backend experience, DevOps awareness, and proven technical leadership capabilities to join our Client’s … both engineering efforts and mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams … and optimise the full software development lifecycle through automation. Requirements: 7–10+ years of professional experience in software engineering, with a strong focus on Java backend development . Solid understanding of Spring Boot , Kafka , RabbitMQ , PostgreSQL , and modern API design patterns. Hands-on experience or familiarity with DevOps tools More ❯

Senior Software Engineer – Java Backend London (5 days onsite, with some ad-hoc flexibility) £85,000 – £120,000 (Permanent) TechHeads is currently seeking a Senior Software Engineer with strong Java backend experience, DevOps awareness, and proven technical leadership capabilities to join our Client’s … both engineering efforts and mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams … and optimise the full software development lifecycle through automation. Requirements: 7–10+ years of professional experience in software engineering, with a strong focus on Java backend development . Solid understanding of Spring Boot , Kafka , RabbitMQ , PostgreSQL , and modern API design patterns. Hands-on experience or familiarity with DevOps tools 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 … 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 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 … 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 More ❯

London, Canary Wharf (Hybrid) Engagement: Long-term engagement within one of the world’s most prominent banking institutions This is more than just a Java development job — it’s an opportunity to work at the core of a global financial powerhouse, supporting a large-scale transformation of how secure … London’s iconic Canary Wharf, with a hybrid model that supports flexibility and work-life balance. If you're passionate about writing clean, modern Java code and want to see your work used at a global scale, this is the kind of long-term project that builds real career … momentum. What You’ll Do 🔹 Develop and maintain internal Java-based tools and microservices that improve how developers build secure applications 🔹 Contribute to enterprise-wide initiatives around software composition analysis and supply chain transparency 🔹 Work closely with platform engineers, security experts, and software developers across multiple regions 🔹 Help standardize More ❯

London, Canary Wharf (Hybrid) Engagement: Long-term engagement within one of the world’s most prominent banking institutions This is more than just a Java development job — it’s an opportunity to work at the core of a global financial powerhouse, supporting a large-scale transformation of how secure … London’s iconic Canary Wharf, with a hybrid model that supports flexibility and work-life balance. If you're passionate about writing clean, modern Java code and want to see your work used at a global scale, this is the kind of long-term project that builds real career … momentum. What You’ll Do 🔹 Develop and maintain internal Java-based tools and microservices that improve how developers build secure applications 🔹 Contribute to enterprise-wide initiatives around software composition analysis and supply chain transparency 🔹 Work closely with platform engineers, security experts, and software developers across multiple regions 🔹 Help standardize 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 ❯

environment and is passionate about leveraging cutting-edge technology to drive change. What you'll need: 5+ years of commercial development experience, focused on Java development (preferably web-based applications) Experience working with Rest APIs Be able to implement technical solutions Experience working with databases. Experience with continuous integration More ❯

environment and is passionate about leveraging cutting-edge technology to drive change. What you'll need: 5+ years of commercial development experience, focused on Java development (preferably web-based applications) Experience working with Rest APIs Be able to implement technical solutions Experience working with databases. Experience with continuous integration More ❯