26 to 45 of 45 Java Software Engineer Jobs in London

Senior Java Developer - Java, Springboot & AWS – paying up to £600/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile … high-ownership engineering culture. What You'll Be Doing: Build and scale backend services using Java and Spring Boot Shape a modern microservices architecture for a high-availability platform Deploy and manage services in AWS with Kubernetes (EKS) Design, implement, and own features end-to-end from discovery to production support Advocate for clean code, automated testing, and CI … with cross-functional teams including product, design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributed systems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid More ❯

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 processing, configuration management, and support for quantitative research and trading … to deliver platform enhancements Drive 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 and CI/CD workflows Competitive More ❯

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 processing, configuration management, and support for quantitative research and trading … to deliver platform enhancements Drive 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 and CI/CD workflows Competitive More ❯

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 processing, configuration management, and support for quantitative research and trading … to deliver platform enhancements Drive 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 and CI/CD workflows Competitive More ❯

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 processing, configuration management, and support for quantitative research and trading … to deliver platform enhancements Drive 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 and CI/CD workflows Competitive More ❯

Core Java Developer – Trading £140,000 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 tech driven trading (Equities and ETF’s) company with a pioneering … Their trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 7 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 sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯

Core Java Developer – Trading £140,000 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 tech driven trading (Equities and ETF’s) company with a pioneering … Their trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 7 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 sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯

Trading System Engineer – Shape the Future of Trading Leading European Private Bank Ready to make a real impact on a cutting-edge trading platform? A leading European private bank is seeking a highly skilled Trading System Engineer/Architect to spearhead the transformation of their equity trading technology. This is a unique opportunity to contribute to a multi … Execution Platform. Guarantee the system's high availability for global equity market trading. Craft bespoke trading workflows tailored to the specific needs of demanding clients across multiple trading desks. Engineer and optimize systems for dynamic scalability, ensuring responsiveness to market fluctuations and events. Collaborate closely with other IB Engineering teams and project stakeholders. What You Bring: A minimum of … five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems More ❯

Trading System Engineer – Shape the Future of Trading Leading European Private Bank Ready to make a real impact on a cutting-edge trading platform? A leading European private bank is seeking a highly skilled Trading System Engineer/Architect to spearhead the transformation of their equity trading technology. This is a unique opportunity to contribute to a multi … Execution Platform. Guarantee the system's high availability for global equity market trading. Craft bespoke trading workflows tailored to the specific needs of demanding clients across multiple trading desks. Engineer and optimize systems for dynamic scalability, ensuring responsiveness to market fluctuations and events. Collaborate closely with other IB Engineering teams and project stakeholders. What You Bring: A minimum of … five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems More ❯

Trading System Engineer – Shape the Future of Trading Leading European Private Bank Ready to make a real impact on a cutting-edge trading platform? A leading European private bank is seeking a highly skilled Trading System Engineer/Architect to spearhead the transformation of their equity trading technology. This is a unique opportunity to contribute to a multi … Execution Platform. Guarantee the system's high availability for global equity market trading. Craft bespoke trading workflows tailored to the specific needs of demanding clients across multiple trading desks. Engineer and optimize systems for dynamic scalability, ensuring responsiveness to market fluctuations and events. Collaborate closely with other IB Engineering teams and project stakeholders. What You Bring: A minimum of … five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems More ❯

Trading System Engineer – Shape the Future of Trading Leading European Private Bank Ready to make a real impact on a cutting-edge trading platform? A leading European private bank is seeking a highly skilled Trading System Engineer/Architect to spearhead the transformation of their equity trading technology. This is a unique opportunity to contribute to a multi … Execution Platform. Guarantee the system's high availability for global equity market trading. Craft bespoke trading workflows tailored to the specific needs of demanding clients across multiple trading desks. Engineer and optimize systems for dynamic scalability, ensuring responsiveness to market fluctuations and events. Collaborate closely with other IB Engineering teams and project stakeholders. What You Bring: A minimum of … five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Developer Location: Manchester, Cheltenham or London Clearance required: eDV Duration: 5+ months Role Description: • Java development • Object store configuration and containerisation • Docker, Kubernetes • Back-end software development using … Python and Java • Relational databases and SQL • Experience integrating 3rd party software, scripting/glue work • Experience building and deploying web user interfaces • Experience working closely with or in national security missions • Agile approaches to delivery • Good problem-solving skills and understanding of how to trace faults/errors in the system • Ability to present technical ideas clearly More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Developer Location: Manchester, Cheltenham or London Clearance required: eDV Duration: 5+ months Role Description: • Java development • Object store configuration and containerisation • Docker, Kubernetes • Back-end software development using … Python and Java • Relational databases and SQL • Experience integrating 3rd party software, scripting/glue work • Experience building and deploying web user interfaces • Experience working closely with or in national security missions • Agile approaches to delivery • Good problem-solving skills and understanding of how to trace faults/errors in the system • Ability to present technical ideas clearly More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Developer Location: Manchester, Cheltenham or London Clearance required: eDV Duration: 5+ months Role Description: • Java development • Object store configuration and containerisation • Docker, Kubernetes • Back-end software development using … Python and Java • Relational databases and SQL • Experience integrating 3rd party software, scripting/glue work • Experience building and deploying web user interfaces • Experience working closely with or in national security missions • Agile approaches to delivery • Good problem-solving skills and understanding of how to trace faults/errors in the system • Ability to present technical ideas clearly More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Developer Location: Manchester, Cheltenham or London Clearance required: eDV Duration: 5+ months Role Description: • Java development • Object store configuration and containerisation • Docker, Kubernetes • Back-end software development using … Python and Java • Relational databases and SQL • Experience integrating 3rd party software, scripting/glue work • Experience building and deploying web user interfaces • Experience working closely with or in national security missions • Agile approaches to delivery • Good problem-solving skills and understanding of how to trace faults/errors in the system • Ability to present technical ideas clearly More ❯

Key Responsibilities: • Demonstrates significant working knowledge of Java and related technologies and advises on design, development, and implementation. • Leads by example, promoting an open and inclusive culture, holding responsibility for motivation, retention and performance management. • Leads the delivery of critical projects, coaching team members to be productive with little direction; delegating and reviewing work when required. • Leads timely design … documentation and alignment to standards, policies & strategy across emerging technology, as well as wider Group technology Required Skills and Experience: • Experience with Kafka/Event-driven architecture • Computer science, software engineering or relevant technical background required. • A minimum of 5 years of professional experience in backend development with a track record if producing and maintaining efficient and maintainable code. … work with stakeholders across the business to progress and achieve the relevant goals to ensure development, deployment & delivery is successful. Mandatory Technical Skills: • 5 or more years programming in Java • Spring inc. Spring Boot, Spring JDBC, Spring Data, Hibernate/JPA, building REST services • Understanding of REST API design • Experience of deploying and maintaining applications in the cloud (Azure More ❯

Key Responsibilities: • Demonstrates significant working knowledge of Java and related technologies and advises on design, development, and implementation. • Leads by example, promoting an open and inclusive culture, holding responsibility for motivation, retention and performance management. • Leads the delivery of critical projects, coaching team members to be productive with little direction; delegating and reviewing work when required. • Leads timely design … documentation and alignment to standards, policies & strategy across emerging technology, as well as wider Group technology Required Skills and Experience: • Experience with Kafka/Event-driven architecture • Computer science, software engineering or relevant technical background required. • A minimum of 5 years of professional experience in backend development with a track record if producing and maintaining efficient and maintainable code. … work with stakeholders across the business to progress and achieve the relevant goals to ensure development, deployment & delivery is successful. Mandatory Technical Skills: • 5 or more years programming in Java • Spring inc. Spring Boot, Spring JDBC, Spring Data, Hibernate/JPA, building REST services • Understanding of REST API design • Experience of deploying and maintaining applications in the cloud (Azure More ❯

Key Responsibilities: • Demonstrates significant working knowledge of Java and related technologies and advises on design, development, and implementation. • Leads by example, promoting an open and inclusive culture, holding responsibility for motivation, retention and performance management. • Leads the delivery of critical projects, coaching team members to be productive with little direction; delegating and reviewing work when required. • Leads timely design … documentation and alignment to standards, policies & strategy across emerging technology, as well as wider Group technology Required Skills and Experience: • Experience with Kafka/Event-driven architecture • Computer science, software engineering or relevant technical background required. • A minimum of 5 years of professional experience in backend development with a track record if producing and maintaining efficient and maintainable code. … work with stakeholders across the business to progress and achieve the relevant goals to ensure development, deployment & delivery is successful. Mandatory Technical Skills: • 5 or more years programming in Java • Spring inc. Spring Boot, Spring JDBC, Spring Data, Hibernate/JPA, building REST services • Understanding of REST API design • Experience of deploying and maintaining applications in the cloud (Azure More ❯

Key Responsibilities: • Demonstrates significant working knowledge of Java and related technologies and advises on design, development, and implementation. • Leads by example, promoting an open and inclusive culture, holding responsibility for motivation, retention and performance management. • Leads the delivery of critical projects, coaching team members to be productive with little direction; delegating and reviewing work when required. • Leads timely design … documentation and alignment to standards, policies & strategy across emerging technology, as well as wider Group technology Required Skills and Experience: • Experience with Kafka/Event-driven architecture • Computer science, software engineering or relevant technical background required. • A minimum of 5 years of professional experience in backend development with a track record if producing and maintaining efficient and maintainable code. … work with stakeholders across the business to progress and achieve the relevant goals to ensure development, deployment & delivery is successful. Mandatory Technical Skills: • 5 or more years programming in Java • Spring inc. Spring Boot, Spring JDBC, Spring Data, Hibernate/JPA, building REST services • Understanding of REST API design • Experience of deploying and maintaining applications in the cloud (Azure More ❯

to grow your savings for decades and build generational wealth. What we're looking for Do you want to build robust systems that empower financial freedom? 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 team to create solutions that … engineering microservices and evolving a number of systems that our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity) Our technology stack is based predominantly on Java 21 on the backend with Postgres database We rely on Spring Boot for quick and quality delivery We have a pragmatic approach to develop our business logic, focusing on … with emphasis on maintainability and fast turnaround with TDD, DDD and continuous integration & delivery What you'll need Minimum 3+ years of experience in Backend development, with fluency in Java Quick learner with an ambitious and results driven personality, with excellent communication skills (english fluency, verbal and written) Track record of building complex products that millions of people use More ❯