1 to 25 of 108 Java Developer Jobs in the Thames Valley

Social network you want to login/join with: Low latency Java Developer - Algo Trading Up to £160,000 p/a Leading London-based trading firm has an outstanding opportunity for a Java Developer to join their low latency trading team. Our client quant prop … with performance figures of 22%. They are currently looking to expand their high and intraday trading presence across FX, equities and commodities. The Java Developer will: Work closely with the Head of Trading and the Quant Team and assist in design and development of new trading algorithms … mainly in Java Help engineer a new greenfield low latency trading platform Work on connectivity to Financial Exchanges Develop utility applications and excel tools to help with trading activities Work with traders, understand requirements for new applications and strategies to develop and also resolve issues if any This is More ❯

Social network you want to login/join with: Senior Java Developer TDD - Technologist, slough col-narrow-left Client: Client Server Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … Senior Java Developer/Backend Software Engineer London onsite to £160k Are you a Java technologist with strong knowledge of software engineering best practices and backend development experience looking for an opportunity to progress your career in a senior, hands-on role with complex and challenging work … You could be joining a scaling Cyber Security technology company that has just received £100 million investment. As a Senior Java Developer you'll join a small, Agile team using core Java within a TDD environment deploying to AWS. You'll design and develop new features and More ❯

Java Developer - Low Latency - eTrading, Slough Client: Source Technology Location: Slough, United Kingdom Job Category: Other Work Arrangement: Remote-friendly role with up to 2 days in the office per week, flexible. EU work permit required: Yes Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 Job Description: Low … Latency Java Developer Location: London (Hybrid) Contract: Outside IR35, ~£800-£1,000 (flexible for top candidates) Source Technology has multiple high-performance Java developer roles available on projects at a tier-one investment bank across FX and Cash Equities. What You’ll Do: Develop and optimise … monitoring, reconciliation, and recovery. Implement automated testing and CI/CD best practices. What We’re Looking For: 10+ years' experience in low-latency Java (Java 11+) development. Expertise in JVM tuning, asynchronous programming, and high-performance messaging. Strong understanding of exchange connectivity, market data feeds, and FIX More ❯

The right to work in the UK without sponsorship is essential for this vacancy. An exciting opportunity for a Java Developer has arisen with a leading cyber security innovator developing cutting-edge cyber security testing solutions, based in London. This is a great opportunity for a Java Developer to join a fast-growing, mission-driven team and help shape the future of automated cyber security testing tools. You’ll work hands-on with Java, collaborating across disciplines to build innovative solutions with autonomy and immediate impact. You will commit to a hybrid working model … required onsite 3 days a week. Experience of the Java Developer includes: 1+ year with Java development and object-oriented design Test-driven development, including experience with TDD, JUnit, and user testing Use of GIT VCS Creation of detailed design documentation If you are a Java More ❯

Social network you want to login/join with: Java Developer - UpTo £80k – Java, Spring, slough col-narrow-left Client: Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description … of London – 5 days in office during probation period (hybrid after ) A fast-growing, FCA-regulated trading and investment firm is seeking a talented Java Developer to join their highly skilled tech team. You'll be instrumental in building a brand-new trading platform from scratch, no legacy … tools and real impact. As part of a cross-functional team of experienced engineers and finance professionals, you’ll develop high-performance systems using Java and spring in a cloud-first, AI-forward environment. To be considered for this Java Developer role, you’ll need: Bachelor’s More ❯

Principal Java Developer – Major Financial Institution London/Hybrid | Contract | £700-£800 inside IR35 (gross umbrella rate) We’re working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands … design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems Strong background in Java and ideally C# Some front end exposure (Angular ideally but other frameworks considered). Note the role is back end focused. Comfortable working with … implementation Bonus points for: Angular, React or frontend exposure Familiarity with Snowflake or backend SQL variants This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who thrives in complex environments and enjoys technical leadership alongside delivery, apply More ❯

Social network you want to login/join with: Contract Application Developer (Java, Typescript & Endur), slough col-narrow-left Client: X4 Technology Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job … Description: Role: Application Developer Industry: Energy trading Day Rate: £500-600/d inside IR35 Location: London (hybrid) Contract: 6 months (strong extension potential) X4 Technology are partnered with a global energy trading company looking for a skilled Application Developer to join their team on a contract basis. … environment, contributing to the development and integration of solutions that support renewable energy trading, financial analytics, and risk management. Responsibilities of the Contract Application Developer (Java, Typescript, Endur) Develop, enhance and maintain applications using Java and TypeScript . Customise and support Endur (Openlink), including JVS and AVS More ❯

Java Developer with SQL, Oxford District Client: Xoriant Location: Oxford District, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 2 Posted: 06.06.2025 Expiry Date: 21.07.2025 Job Description: Java Developer with Very Strong SQL Location: Glasgow, UK Work Arrangement: Hybrid (2-3 days … a week) Contract Duration: 6+ Months Inside IR35 The Role Join a multi-year Disclosure of Interest (DOI) program as an experienced Java developer, based out of Glasgow. Participate in transforming the firm's reporting and management of equity holdings as part of a global renovation program. Work … regulatory reporting obligations. Communicate effectively with various systems involved in the DOI program across different regions. What You'll Need to Succeed Proficiency in Java and related technologies. Experience with frameworks such as Spring, Angular, Spark. Experience developing web services, especially REST APIs. Knowledge of testing methodologies including unit More ❯

Social network you want to login/join with: Java Developer (Outside IR35 Contract), Slough Client: Bonhill Partners Location: Slough, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 4 Posted: 04.06.2025 Expiry Date: 19.07.2025 Job Description: Java Developer (Contract) – Fintech Scale-Up … people and institutions make the most of their money by simplifying access to high-performing savings products. The Role We’re looking for a Java Developer to join their growing platform team on a 6-month Outside IR35 contract . This is a backend-focused role where you … environment, helping them scale to meet growing demand from financial institutions and end-users alike. Key Responsibilities Develop and maintain scalable backend services using Java Architect and implement service-oriented and event-driven systems Optimise and manage PostgreSQL databases Contribute to light React frontend work when needed Build and More ❯

Social network you want to login/join with: Java Developer (Outside IR35 Contract), High Wycombe Client: Bonhill Partners Location: High Wycombe, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 4 Posted: 04.06.2025 Expiry Date: 19.07.2025 Job Description: Java Developer (Contract) – Fintech … people and institutions make the most of their money by simplifying access to high-performing savings products. The Role We’re looking for a Java Developer to join their growing platform team on a 6-month Outside IR35 contract . This is a backend-focused role where you … environment, helping them scale to meet growing demand from financial institutions and end-users alike. Key Responsibilities Develop and maintain scalable backend services using Java Architect and implement service-oriented and event-driven systems Optimise and manage PostgreSQL databases Contribute to light React frontend work when needed Build and More ❯

experiencing record months and having a significant influence on architectural decisions for new products, all while working from home. We are looking for a Java Developer who: Has experience working in high-performing and low latency environments Is highly skilled in Core Java with multithreaded applications Has … holds a PhD in Computer Science Enjoy a flexible work-life balance and unlimited growth potential as the company expands. This is a fantastic Java Developer opportunity! If you want to combine your expertise in algorithms and data structures with making a positive impact in the world, apply … now for this Java Developer role! Please note : Due to compliance reasons, we can only consider applications from candidates based in the UK. #J-18808-Ljbffr More ❯

significant influence and architectural decision-making in the design and creation of new products, all while working from home. You will be an excellent Java Developer if you: Have worked in high-performing and low latency environments Are highly experienced using Core Java with multithreaded applications Possess … a PhD in Computer Science Enjoy a highly flexible work-life balance and unlimited potential to grow with the company, this is an unmissable Java Developer opportunity! If you want to combine your deep understanding of algorithms and data structures with making a positive impact in the world … apply now for this exciting Java Developer role! Please note : Due to compliance reasons, we can only consider applications from candidates based in the UK. #J-18808-Ljbffr More ❯

and architectural decision-making when it comes the design and creation of new products, all while working from home. You will be an excellent Java Developer if you: Have worked in high-performing and low latency environments Are highly experienced using Core Java with multithreaded applications Possess … a highly flexible work-life balance, as well as unlimited potential to grow with the company as it grows itself, this is an unmissable Java Developer opportunity! If you would like to combine your deep understanding of algorithms and data structures with the ability to ‘do good’ and … make a difference in the world, apply now for this brilliant Java Developer position! Please note : Due to compliancy reasons, we will only be able to consider applications based in the UK. #J-18808-Ljbffr More ❯

and architectural decision-making when it comes the design and creation of new products, all while working from home. You will be an excellent Java Developer if you: Have worked in high-performing and low latency environments Are highly experienced using Core Java with multithreaded applications Possess … a highly flexible work-life balance, as well as unlimited potential to grow with the company as it grows itself, this is an unmissable Java Developer opportunity! If you would like to combine your deep understanding of algorithms and data structures with the ability to ‘do good’ and … make a difference in the world, apply now for this brilliant Java Developer position! Please note : Due to compliancy reasons, we will only be able to consider applications based in the UK. #J-18808-Ljbffr More ❯

and architectural decision-making when it comes the design and creation of new products, all while working from home. You will be an excellent Java Developer if you: Have worked in high-performing and low latency environments Are highly experienced using Core Java with multithreaded applications Possess … a highly flexible work-life balance, as well as unlimited potential to grow with the company as it grows itself, this is an unmissable Java Developer opportunity! If you would like to combine your deep understanding of algorithms and data structures with the ability to ‘do good’ and … make a difference in the world, apply now for this brilliant Java Developer position! Please note : Due to compliancy reasons, we will only be able to consider applications based in the UK. #J-18808-Ljbffr More ❯

Role: Application Developer Tech stack: Java, TypeScript, Endur Industry: Energy trading Day Rate: £500-600/d inside IR35 Location: London (hybrid) Contract: 6 months (strong extension potential) X4 Technology are partnered with a global energy trading company looking for a skilled Application Developer to join their … environment, contributing to the development and integration of solutions that support renewable energy trading, financial analytics, and risk management. Responsibilities of the Contract Application Developer (Java, Typescript, Endur) Develop, enhance and maintain applications using Java and TypeScript . Customise and support Endur (Openlink), including JVS and AVS … Participate in code reviews, design sessions, and continuous improvement initiatives. Ensure software quality through unit testing, automation, and documentation. Requirements of the Contract Application Developer (Java, Typescript, Endur): Proven experience in Java development (Spring Boot, REST APIs). Solid front-end experience with TypeScript and modern frameworks More ❯

Senior Java Developer Global Tech Giant Up to £115k 2-3x a week in Shoreditch Are you a Senior Java Developer eager to lead the charge in innovation for one of Silicon Valley’s largest tech giants? This is a rare opportunity to join a … Senior Developers to lead new squads focused on greenfield projects. They have a strong engineering culture in the London office, and as their Senior Developer, you’ll work with Java (17+), SpringBoot, Kotlin and NoSQL databases . They’ve got their own internal cloud and toolings using Prometheus … and Grafana. As their Senior Developer, you’ll be: A key advocate for best coding practice, standards, and innovation. TDD approach is key for this as you’ll be owning the end to end development of the platform Experienced in mentoring and also hands on support of your team. More ❯

Social network you want to login/join with: Lead Java Developer – Gaming | Hybrid (London – 3 days on-site) | Up to £95,000 per annum basic salary + Bonus & Benefits James Adams Recruitment has partnered with a fast-growing company at the forefront of the online gaming industry. … Our client is an innovator in the iGaming space, delivering cutting-edge online gaming to a global audience. They are looking for a Lead Java Developer t o play a pivotal role in shaping the architecture and development of their real-time gaming platform. The Role This is … designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities Develop & Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . Cloud & DevOps – Work within More ❯

Social network you want to login/join with: Lead Java Developer – Gaming | Hybrid (London – 3 days on-site) | Up to £95,000 per annum basic salary + Bonus & Benefits James Adams Recruitment has partnered with a fast-growing company at the forefront of the online gaming industry. … Our client is an innovator in the iGaming space, delivering cutting-edge online gaming to a global audience. They are looking for a Lead Java Developer t o play a pivotal role in shaping the architecture and development of their real-time gaming platform. The Role This is … designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities Develop & Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . Cloud & DevOps – Work within More ❯

Social network you want to login/join with: Lead Java Developer – Gaming | Hybrid (London – 3 days on-site) | Up to £95,000 per annum basic salary + Bonus & Benefits James Adams Recruitment has partnered with a fast-growing company at the forefront of the online gaming industry. … Our client is an innovator in the iGaming space, delivering cutting-edge online gaming to a global audience. They are looking for a Lead Java Developer t o play a pivotal role in shaping the architecture and development of their real-time gaming platform. The Role This is … designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities Develop & Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . Cloud & DevOps – Work within More ❯

Social network you want to login/join with: Lead Java Developer – Gaming | Hybrid (London – 3 days on-site) | Up to £95,000 per annum basic salary + Bonus & Benefits James Adams Recruitment has partnered with a fast-growing company at the forefront of the online gaming industry. … Our client is an innovator in the iGaming space, delivering cutting-edge online gaming to a global audience. They are looking for a Lead Java Developer t o play a pivotal role in shaping the architecture and development of their real-time gaming platform. The Role This is … designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities Develop & Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . Cloud & DevOps – Work within More ❯

login/join with: Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks? Location – hybrid in London 3 days a week Salary – up to £90k + 25-50% bonus We are working … with our long-term partners on the hunt for numerous Mid-level Java Developers as they continue to expand various teams. They began their journey as a market-leading FinTech disruptor and after many years at the forefront of their field, have recently been acquired by a prominent capital … someone with 3-5 years prior experience, with the potential to rapidly progress into a senior position. Experience they are looking for in Mid Java Developers: Core Java Developing software from scratch WITHOUT the use of frameworks e.g. Spring Multithreading Data structures, algorithms, threads Working in a modern More ❯

Java Developer (Contract) – Fintech Scale-Up | Outside IR35 Location: London (Hybrid – 3 days in office) Duration: 6 months About the Company Supporting a fast-growing Fintech scale-up building a next-generation digital cash savings platform. Their mission is to help people and institutions make the most of … their money by simplifying access to high-performing savings products. The Role Seeking a Java Developer to join their platform team on a 6-month Outside IR35 contract . This backend-focused role involves contributing to the architecture and development of a high-availability, API-driven SaaS platform. … to help scale the platform to meet increasing demand from financial institutions and end-users. Key Responsibilities Develop and maintain scalable backend services using Java Architect and implement service-oriented and event-driven systems Optimize and manage PostgreSQL databases Contribute to light React frontend work when needed Build and More ❯

Job Title: Core Java Developer – Ultra Low Latency Trading Systems Location: London Type: Permanent Overview: We are hiring a Core Java developer to join a high-performance trading team focused on eFX OR Crypto markets. This role requires deep technical expertise in ultra-low latency systems … Contribute to architecture and design decisions for latency-sensitive services Ensure code quality through rigorous testing, benchmarking, and profiling Required Skills & Experience: Strong Core Java expertise (JVM internals, multithreading, low-level concurrency) Demonstrable experience building systems with microsecond SLAs Prior experience in eFX or crypto trading platforms , particularly pricing More ❯

Social network you want to login/join with: Backend Developer Java Kotlin AWS, Slough Client: Client Server Location: Slough, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 2 Posted: 04.06.2025 Expiry Date: 19.07.2025 Job Description: Backend Developer/Software Engineer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Backend Developer with strong Java skills looking to progress your career, working with a modern cloud-based infrastructure and a range of technologies? You could be joining a successful and growing commodities trading firm that … specializes in trading whiskey. As a Backend Developer, you'll collaborate with the Lead Engineer on the whiskey trading platform as the company scales the platform and introduces new features. Emphasis is on code quality; designing and developing highly complex web-based trading platforms across the full development lifecycle. More ❯