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 ❯
london (city of london), south east england, united kingdom
Arrows
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 ❯
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 as a Junior Java FullStack Engineer and be involved in building and support the technology systems that enable Barclays to verify client identity, suitability and risks when establishing business relationships with Corporate and Investment Banking Clients. We are building out a team to work on a transformation programme to build a more streamlined, high performance client onboarding … ecosystem with AI assisted data driven decision making capability. To be successful as Junior Java FullStack Engineer within this team, you should have experience with: Programming - Core Java, Collections, Multi -Threading and Concurrency, OOPS concepts, Exception Handling, JVM Concepts, Spring Framework (Spring Boot, Spring Batch, Spring Integration), SQL Integration - Micro Service Architecture, Developing and integration with Restful More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Noir
Java Developer - Financial Technology - London/Hybrid (INSIDE IR35) (Key skills: Java, Spring Boot, Kubernetes, AWS EKS, Amazon Redshift, PostgreSQL, RESTful APIs, CI/CD, Microservices, iOS/Android Native, Agile, Financial Services) Are you a highly skilled Java Developer with a passion for building scalable, high-performance financial systems? Do you enjoy working with cutting-edge … is a fantastic opportunity to join a growing FinTech organisation at the heart of digital transformation in financial services. Our client, an international financial technology company , is seeking a Java Developer to play a key role in designing, developing, and deploying next-generation financial applications. You will work on complex, high-availability systems built using Spring Boot , deployed on … with iOS and Android engineers to ensure seamless end-to-end integration, supporting mobile-first financial products that reach thousands of users daily. To succeed, you'll need strong Java and Spring Boot experience, solid understanding of Kubernetes and AWS services, and hands-on database development with SQL-based systems. Familiarity with mobile integrations (iOS/Android native), RESTful More ❯
Role: Software Engineer (Java) Location: London Salary: Competitive salary and package (Depending on level of experience) Any offer of employment is subject to satisfactory BPSS and the candidate being granted a level of security clearance which typically requires 10 years continuous UK address history, usually including no periods of 30 consecutive days or more spent outside of the More ❯
Platform Support Engineer Surrey Hybrid – 1 day per month onsite £50,000 to £60,000 We are currently recruiting for a Platfrom Support Engineer to join an industry leading and ambitious financial services company. This is an exciting opportunity with multifaceted responsibilities, including infrastructure, application and batch support. As well as developing and maintaining Grafana dashboards. What you … ll do: • Support batch processing and carry out proactive analysis across squads and services. • Support and triage Java products • Provide application support for Java. • Review Java code and suggest improvements to enhance quality and performance. • Investigate and resolve production incidents, problems, and change requests. • Offer expertise on business processes for projects and production support issues. • Maintain core systems … ready data archiving strategies. • Provide data analysis to support business decisions • Deliver patching, database fixes, and business-critical data correction services. What we’d love you to bring: • Extensive Java knowledge and experience is required for this position, Java 17+ (preferably 21), Spring Boot • Jenkins, GIT and CI/CD • Jira and Confluence • Monitoring/alerting tools and More ❯
Platform Support Engineer Surrey Hybrid – 1 day per month onsite £50,000 to £60,000 We are currently recruiting for a Platfrom Support Engineer to join an industry leading and ambitious financial services company. This is an exciting opportunity with multifaceted responsibilities, including infrastructure, application and batch support. As well as developing and maintaining Grafana dashboards. What you … ll do: • Support batch processing and carry out proactive analysis across squads and services. • Support and triage Java products • Provide application support for Java. • Review Java code and suggest improvements to enhance quality and performance. • Investigate and resolve production incidents, problems, and change requests. • Offer expertise on business processes for projects and production support issues. • Maintain core systems … ready data archiving strategies. • Provide data analysis to support business decisions • Deliver patching, database fixes, and business-critical data correction services. What we'd love you to bring: • Extensive Java knowledge and experience is required for this position, Java 17+ (preferably 21), Spring Boot • Jenkins, GIT and CI/CD • Jira and Confluence • Monitoring/alerting tools and More ❯
london, south east england, united kingdom Hybrid / WFH Options
Radley James
Join a Tier 1 Investment bank in their leading global FX trading platform as a JavaEngineer, 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 ❯
slough, south east england, united kingdom Hybrid / WFH Options
Radley James
Join a Tier 1 Investment bank in their leading global FX trading platform as a JavaEngineer, 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 ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Radley James
Join a Tier 1 Investment bank in their leading global FX trading platform as a JavaEngineer, 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 ❯
Our client are a high frequency trading firm based in London. They're looking for a back-end Javaengineer who will contribute to both sides of the stack. This isn't a typical full-stack role, your time isn't split between backend and frontend work. They have a frontend team in place. You will not be … designing UI. Instead, you will build high-performance Java services that power the trading UI. So yes you need frontend awareness, but your focus is on backend engineering that makes the UI fast and reliable. What you will do: Design and build Java services that feed real-time data to the frontend. Work with the UI team on … back-pressure, and error handling. Improve end-to-end latency by looking across the stack. What you'll bring: Strong knowledge of computer science fundamentals (data structures, algorithms). Java engineering experience in trading, betting, gaming, or streaming. Hands-on work with real-time or data-heavy systems. Comfortable across server and browser. Not essential (but nice-to-have More ❯
Birmingham, England, United Kingdom Hybrid / WFH Options
Capgemini Engineering
Software Engineer Permanent - 3 days on site Birmingham £50,000 - £60,000 Diagnostics Software Engineer Team/Reporting Line Based within the Diagnostics Engineering team and reporting directly to the Diagnostics Manager. Role Purpose To support the development, testing, and validation of diagnostic tools used in both dealer workshops and engineering environments. This role is essential to ensuring … working cross-functionally with multiple teams. – Proficient with Git or other version control systems. - Strong problem-solving and analytical skills. - Effective communication skills and ability to work collaboratively. Desirable: - Java development skills. - Prior experience working with diagnostic tools at an OEM or Tier 1 supplier. Qualifications Degree in Software Engineering, Computer Science, Automotive Engineering, or equivalent experience. Location & Working More ❯
Winchester, Hampshire, United Kingdom Hybrid / WFH Options
Tria
company is modernising its platforms and strengthening its engineering capability to deliver high-performing, scalable systems that support major clients across the UK. The Role As a Senior Software Engineer , you'll play a key part in designing, developing, and improving large-scale software systems. This is a hands-on technical role where you'll contribute directly to architecture … and development, while supporting and mentoring other engineers. It's an ideal opportunity for an experienced Java developer who enjoys solving complex challenges and wants to influence technical direction without moving into a management position. Key Responsibilities Lead the design and delivery of new features and improvements Develop and maintain complex Java-based applications Collaborate on architecture and … system design decisions Coach and support other engineers within the team Promote high standards in coding and delivery practices About You You're an experienced software engineer who takes ownership, communicates clearly, and thrives in a collaborative Agile environment. Essential: 5+ years of experience in Java development Strong knowledge of SQL and web services (REST/SOAP) Solid More ❯
Worcestershire, United Kingdom Hybrid / WFH Options
Tria
company is modernising its platforms and strengthening its engineering capability to deliver high-performing, scalable systems that support major clients across the UK. The Role As a Senior Software Engineer , you'll play a key part in designing, developing, and improving large-scale software systems. This is a hands-on technical role where you'll contribute directly to architecture … and development, while supporting and mentoring other engineers. It's an ideal opportunity for an experienced Java developer who enjoys solving complex challenges and wants to influence technical direction without moving into a management position. Key Responsibilities Lead the design and delivery of new features and improvements Develop and maintain complex Java-based applications Collaborate on architecture and … system design decisions Coach and support other engineers within the team Promote high standards in coding and delivery practices About You You're an experienced software engineer who takes ownership, communicates clearly, and thrives in a collaborative Agile environment. Essential: 5+ years of experience in Java development Strong knowledge of SQL and web services (REST/SOAP) Solid More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Quant Capital
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 tech driven trading (Equities and ETF’s) company with a … 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 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 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 ❯
london, south east england, united kingdom Hybrid / WFH Options
Quant Capital
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 tech driven trading (Equities and ETF’s) company with a … 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 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 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 ❯
C++/Java Software Engineer – CONTRACT 6 MONTHS – CRAWLEY West Sussex 4 Days on site per week in Crawley OUTSIDE OF IR35 POSITION Key responsibilities will include the design, implementation and test of Runtime and Middleware products, using industry standard tools and methods. ROLE Develop our systems by working as part of a project team to deliver a … on both land and at sea. Help our strategy by working with the software management function to ensure that skills, technology and ways of working are developed. ESSENTIAL SKILLS Java or C++ Software Design, Code & Test Configuration management (Bitbucket, Artifactory) Change and task management using JIRA, for aspects such as work backlogs, problem report management, action management. Unit testing More ❯
Nottingham, England, United Kingdom Hybrid / WFH Options
UST
Job Title: Java, AWS – Senior/Tech Lead Location: Nottingham, United Kingdom (Hybrid: 3 days in office, 2 days remote) About the Role: We are expanding our Java Development team in Nottingham! If you’re passionate about building high-quality software that enhances the lives of consumers, this is your chance to work in a collaborative, self-organized … and contribute to your technical domain Required Skills and Experience: Experience with AWS/Cloud platforms Proven ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively More ❯
derby, midlands, united kingdom Hybrid / WFH Options
UST
Job Title: Java, AWS – Senior/Tech Lead Location: Nottingham, United Kingdom (Hybrid: 3 days in office, 2 days remote) About the Role: We are expanding our Java Development team in Nottingham! If you’re passionate about building high-quality software that enhances the lives of consumers, this is your chance to work in a collaborative, self-organized … and contribute to your technical domain Required Skills and Experience: Experience with AWS/Cloud platforms Proven ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively More ❯
mansfield, midlands, united kingdom Hybrid / WFH Options
UST
Job Title: Java, AWS – Senior/Tech Lead Location: Nottingham, United Kingdom (Hybrid: 3 days in office, 2 days remote) About the Role: We are expanding our Java Development team in Nottingham! If you’re passionate about building high-quality software that enhances the lives of consumers, this is your chance to work in a collaborative, self-organized … and contribute to your technical domain Required Skills and Experience: Experience with AWS/Cloud platforms Proven ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively More ❯
london, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Mid-Level Java Developer – Trading £100,000 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 … 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 5-7 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 ❯
slough, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Mid-Level Java Developer – Trading £100,000 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 … 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 5-7 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 ❯
Java Developer – Derivatives A leading financial trade association is seeking a Java Developer to support industry adoption of a global data and digital standards framework used across derivatives markets. Key Responsibilities Contribute to the development and implementation of open-source data models for derivatives trade processing and regulatory reporting. Write clean, efficient Java and Python code and … firms and vendors to capture requirements, extend models, and test new functionality. Document code, manage sprints, and contribute to roadmap planning. Requirements Strong software-engineering background with hands-on Java/Python development experience. Knowledge of derivatives trade lifecycle , collateral management, and/or regulatory reporting. Skilled in data modelling and working with XML/JSON formats. Experience collaborating More ❯
Java Developer – Derivatives A leading financial trade association is seeking a Java Developer to support industry adoption of a global data and digital standards framework used across derivatives markets. Key Responsibilities Contribute to the development and implementation of open-source data models for derivatives trade processing and regulatory reporting. Write clean, efficient Java and Python code and … firms and vendors to capture requirements, extend models, and test new functionality. Document code, manage sprints, and contribute to roadmap planning. Requirements Strong software-engineering background with hands-on Java/Python development experience. Knowledge of derivatives trade lifecycle , collateral management, and/or regulatory reporting. Skilled in data modelling and working with XML/JSON formats. Experience collaborating More ❯