26 to 48 of 48 Java Software Engineer Jobs in the South East

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 ❯

Our client are a high frequency trading firm based in London. They're looking for a back-end Java engineer 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 ❯

My client are a high frequency trading firm based in London. They're looking for a back-end Java engineer 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 ❯

My client are a high frequency trading firm based in London. They're looking for a back-end Java engineer 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 ❯

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 … JSON, DSL ). Engage with member 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 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 … JSON, DSL ). Engage with member 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 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 … JSON, DSL ). Engage with member 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 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

Java Developer | FinTech | London (Hybrid) | £65,000 base I'm working with a growing FinTech who are building modern financial technology solutions and looking for a talented developer to join their growing engineering team in London. You’ll work closely with business stakeholders and other engineers to deliver impactful, production-ready systems in a fast-moving environment. This is … a great opportunity for someone with a solid foundation in Java who wants to build, ship and own end-to-end features that make a real difference. What you’ll do: Design, develop and deploy cloud-based Java applications used by the business daily. Collaborate directly with product and business teams to turn ideas into reliable solutions. Take … full ownership of services from design to release, ensuring clean, maintainable code. Contribute to architectural discussions and help shape best practices across the team. Tech stack & experience: Java (ideally 17+). Spring Boot or Micronaut frameworks. Cloud deployment experience (Azure preferred). Working with NoSQL databases (Cosmos DB or similar). Understanding of REST APIs, microservices and CI/ More ❯

Java Developer | FinTech | London (Hybrid) | £65,000 base I'm working with a growing FinTech who are building modern financial technology solutions and looking for a talented developer to join their growing engineering team in London. You’ll work closely with business stakeholders and other engineers to deliver impactful, production-ready systems in a fast-moving environment. This is … a great opportunity for someone with a solid foundation in Java who wants to build, ship and own end-to-end features that make a real difference. What you’ll do: Design, develop and deploy cloud-based Java applications used by the business daily. Collaborate directly with product and business teams to turn ideas into reliable solutions. Take … full ownership of services from design to release, ensuring clean, maintainable code. Contribute to architectural discussions and help shape best practices across the team. Tech stack & experience: Java (ideally 17+). Spring Boot or Micronaut frameworks. Cloud deployment experience (Azure preferred). Working with NoSQL databases (Cosmos DB or similar). Understanding of REST APIs, microservices and CI/ More ❯

Java Developer | FinTech | London (Hybrid) | £65,000 base I'm working with a growing FinTech who are building modern financial technology solutions and looking for a talented developer to join their growing engineering team in London. You’ll work closely with business stakeholders and other engineers to deliver impactful, production-ready systems in a fast-moving environment. This is … a great opportunity for someone with a solid foundation in Java who wants to build, ship and own end-to-end features that make a real difference. What you’ll do: Design, develop and deploy cloud-based Java applications used by the business daily. Collaborate directly with product and business teams to turn ideas into reliable solutions. Take … full ownership of services from design to release, ensuring clean, maintainable code. Contribute to architectural discussions and help shape best practices across the team. Tech stack & experience: Java (ideally 17+). Spring Boot or Micronaut frameworks. Cloud deployment experience (Azure preferred). Working with NoSQL databases (Cosmos DB or similar). Understanding of REST APIs, microservices and CI/ More ❯

strategies used in the automated regression testing of these systems. Follows secure coding practices, performs triaging of security issues, and implements fixes to deliver secure applications. Familiar with common software vulnerabilities and leading practices to mitigate. Should have some experience in researching open- source technologies for use in building systems and participate in open source communities as needed. Works … on projects of moderate scope and complexity. Pro-actively identifies areas for improvement within the software system and processes. Develops assignments and schedules. Requires completion of an undergraduate degree in Computer Science or similar discipline, and 4 years of related experience. Key Responsibilities: Work on a team to deliver new products, features and fixes iteratively using an Agile Scrum … date knowledge of existing and emerging technologies relevant to the role Working and collaborating with remote teams around the world Qualifications & Experience Essential Attributes: 4+ years of experience in Software development of complex applications. Excellent understanding of design principles and considerations, best practice 4+ years of Java and C++ development experience History of applying best practices, code reviews 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 ❯

with design, research, and development of new applications and major enhancements. Provides guidance to developers, testers, and support staff. Using an understanding of the technological advances in both the software industry and in the oil and gas industry this person will challenge the technical software delivery process to deliver fit for purpose software in a more timely … manner. This person will have had experience in leading software development projects and may provide Technical Excellence Leadership for more than one team, providing expert guidance to software developers and support staff. Provides guidance to staff on application security standards, secure coding practices, and secure architecture designs. Provides a strong technical focus in product planning for a complete … software system. Requires completion of an undergraduate degree in Computer Science or similar discipline, and a minimum of 10 years of experience including software development experience. Key Responsibilities: Lead the team to deliver new products, features and fixes iteratively using an Agile Scrum approach working with the Product Owner, Scrum Master, Developers and QAs Working with the architects More ❯