26 to 50 of 73 Senior Java Engineer Jobs in the South East

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

Social network you want to login/join with: ? Senior Java Engineer – Kafka & Spring Boot, slough col-narrow-left Client: Pixelated People Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide … but in-person attendance is only occasionally required for team meetups or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure … frontend specialists to create reliable backend services that keep people and teams connected when it matters most. Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Senior Java Engineer Department: Engineering Employment Type: Full Time Location: Oxford Description About Diffblue Diffblue is changing the way software is developed. We build products that have the potential to improve the experience of every software developer in the world. By using Artificial Intelligence to write unit … marketing teams. We're backed by the University, our customers and leading venture capital funds. Our product Diffblue Cover automatically writes unit tests for Java applications using AI, mimicking human-written tests but working 250 times faster than a human - and it never gets bored or makes a mistake. … a modern business, and that when different opinions, backgrounds and life views meet, better results are obtained. Job purpose We are looking for skilled Java developers to work as part of a team with experts in AI, static and dynamic program analysis, and software verification. This is a great More ❯

Senior Java Engineer - Take Ownership of Flagship Trading Product - Up to £120k, Slough Client: Saragossa Location: Slough, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 1 Posted: 31.05.2025 Expiry Date: 15.07.2025 Job Description: Are you a seasoned engineer looking to lead the … pivotal growth stage. This product is already utilized by tier-1 players in the institutional trading sector to address complex execution challenges. As a Senior Engineer, you will be responsible for developing new features, collaborating with engineers and product leads to create sophisticated, event-driven architecture. A strong … knowledge of Java, real-time, distributed systems, and experience with trading technology, including FIX and scripting for performance, is essential. This is a remote-first role with occasional travel to a London-based hub. You will have significant autonomy and direct support from business leaders, contributing to the product More ❯

Senior Java Software Engineer, Basingstoke Client: Location: Job Category: Other EU work permit required: Yes Job Views: 4 Posted: 13.04.2025 Expiry Date: 28.05.2025 Job Description: £100k–£150k - Remote Working - 6+ years experience (PhD Required) Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the … energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer who has a PhD in Computer Science and is passionate about new, advanced technologies, being able to create impactful solutions in a fast-paced, collaborative environment. … Role Highlights: Design and implement high-performance software systems using Core Java, without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real-time scalability. Drive projects that advance sustainable energy solutions, contributing to a greener future. Key Requirements: Compulsory More ❯

Social network you want to login/join with: Senior Java Software Engineer, Portsmouth, Hampshire Client: Location: Portsmouth, Hampshire, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 Job Description: Senior Software Engineer – Java - FinTech … Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear from you. Our FinTech client could be the … ideal role for you. Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD. Pair programming culture ensures high-quality code and continuous More ❯

Social network you want to login/join with: Senior Java Software Engineer, southampton col-narrow-left Client: Location: southampton, 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 Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear from … you. Our FinTech client could be the ideal role for you.... Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD. Pair programming More ❯

Social network you want to login/join with: Senior Java Software Engineer, oxford district col-narrow-left Client: Location: oxford district, 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 Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear … from you. Our FinTech client could be the ideal role for you. Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD. Pair More ❯

Social network you want to login/join with: Senior Java Software Engineer, high wycombe col-narrow-left Client: Location: high wycombe, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 8 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear … from you. Our FinTech client could be the ideal role for you.... Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD. Pair More ❯

Social network you want to login/join with: Senior Software Engineer (Java) – Bonus, Equity and More, slough col-narrow-left Client: TechHeads Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 10.06.2025 Expiry Date: 25.07.2025 col … wide Job Description: Senior Software Engineer (Java) – Bonus, Equity and More TechHeads is partnering with a global leader in the cyber security space , currently growing their team, to bring you an exciting opportunity for an experienced Senior Software Engineer. This permanent, full-time role is based … and existing backend features , while providing technical leadership through activities such as code reviews and maintaining best practices. Working with a modern stack including Java and Spring Boot , you’ll have the opportunity to develop your expertise with the latest tools and technologies . This is a great chance More ❯

Senior Java Developer 🌍 Up to £150k 💸 - Remote Working 🏡 – 6+ years experience Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer … leverage advanced technologies to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java , without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real-time scalability. Drive projects … that advance sustainable energy solutions, contributing to a greener future. Key Requirements ✅ 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi-threading, low-latency solutions, and data stream management. Strong understanding and practical expertise in asynchronous More ❯

Senior Java Developer 🌍 Up to £150k 💸 - Remote Working 🏡 – 6+ years experience Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer … leverage advanced technologies to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java , without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real-time scalability. Drive projects … that advance sustainable energy solutions, contributing to a greener future. Key Requirements ✅ 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi-threading, low-latency solutions, and data stream management. Strong understanding and practical expertise in asynchronous More ❯

Senior Java Developer 🌍 Up to £150k 💸 - Remote Working 🏡 – 6+ years experience (PhD Required) Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java … technologies, being able to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java, without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real-time scalability. Drive projects … A PhD in Computer Science and the ability to demonstrate extensive knowledge in Software Development. 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi-threading, low-latency solutions, and data stream management. Strong knowledge of Advanced More ❯

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

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

Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear … from you. Our FinTech client could be the ideal role for you. Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a focus on TDD, BDD, and DDD Pair programming … is key We value growth and flexibility, welcoming developers from all backgrounds What You’ll Be Doing Building resilient and adaptable fintech platforms in Java Refactoring to improve code design Writing comprehensive tests for every commit Automating processes to improve efficiency Rotating across teams to enhance collaboration #J More ❯

Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear … from you. Our FinTech client could be the ideal role for you. Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD. Pair … is key. We value growth and flexibility, welcoming developers from all backgrounds. What You’ll Be Doing Building resilient and adaptable fintech platforms in Java Refactoring to improve code design Writing comprehensive tests for every commit Automating processes to improve efficiency Rotating across teams to enhance collaboration #J More ❯

Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear … from you. Our FinTech client could be the ideal role for you. Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD Pair … is key We value growth and flexibility, welcoming developers from all backgrounds What You’ll Be Doing Building resilient and adaptable fintech platforms in Java Refactoring to improve code design Writing comprehensive tests for every commit Automating processes to improve efficiency Rotating across teams to enhance collaboration #J More ❯

Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear … from you. Our FinTech client could be the ideal role for you. Skills: Commercial Java experience - ideally in a fintech, performance environment Strength with Core Java Strong understanding of TDD Clear communication and teamwork Extreme Programming (XP) principles, with a strong focus on TDD, BDD, and DDD Pair … is key We value growth and flexibility, welcoming developers from all backgrounds What You’ll Be Doing Building resilient and adaptable fintech platforms in Java Refactoring to improve code design Writing comprehensive tests for every commit Automating processes to improve efficiency Rotating across teams to enhance collaboration #J More ❯

Social network you want to login/join with: Senior Software Engineer – Java Backend, slough col-narrow-left Client: TechHeads Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description … London (5 days onsite, with some ad-hoc flexibility) TechHeads is currently seeking a Senior Software Engineer with strong Java backend experience, DevOps awareness, and proven technical leadership capabilities to join our Client’s London team. This is a high-impact role involving the design, development, and … both engineering efforts and mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams More ❯

Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions Permanent ¦¦ Onsite ¦¦ London £85,000 - £100,000 DOE TechHeads is proud to partner with a global cybersecurity leader on a high-impact opportunity for a Senior Software Engineer. This permanent role based onsite in central London … week), offers the chance to work shoulder-to-shoulder with a world-class team on complex, secure SaaS systems powering global enterprises. As a Senior Backend Engineer, you’ll play a key role in designing and building greenfield backend services using Java and Spring Boot , with a … and scalable systems, and play a key role in a global product roadmap , we want to hear from you. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot, REST/GraphQL, Kafka, PostgreSQL, and RabbitMQ. Contribute to infrastructure modernisation efforts, working closely with DevOps teams on More ❯

Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions Permanent ¦¦ Onsite ¦¦ London £85,000 - £100,000 DOE TechHeads is proud to partner with a global cybersecurity leader on a high-impact opportunity for a Senior Software Engineer. This permanent role based onsite in central London … week), offers the chance to work shoulder-to-shoulder with a world-class team on complex, secure SaaS systems powering global enterprises. As a Senior Backend Engineer, you’ll play a key role in designing and building greenfield backend services using Java and Spring Boot , with a … and scalable systems, and play a key role in a global product roadmap , we want to hear from you. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot, REST/GraphQL, Kafka, PostgreSQL, and RabbitMQ. Contribute to infrastructure modernisation efforts, working closely with DevOps teams on More ❯

Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions Permanent ¦¦ Onsite ¦¦ London £85,000 - £100,000 DOE TechHeads is proud to partner with a global cybersecurity leader on a high-impact opportunity for a Senior Software Engineer. This permanent role based onsite in central London … week), offers the chance to work shoulder-to-shoulder with a world-class team on complex, secure SaaS systems powering global enterprises. As a Senior Backend Engineer, you’ll play a key role in designing and building greenfield backend services using Java and Spring Boot , with a … and scalable systems, and play a key role in a global product roadmap , we want to hear from you. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot, REST/GraphQL, Kafka, PostgreSQL, and RabbitMQ. Contribute to infrastructure modernisation efforts, working closely with DevOps teams on More ❯

We are currently partnering with a global technology leader seeking a Senior Java Developer. You will be at the forefront of cutting-edge technology, shaping the way millions of users experience seamless digital solutions. This is an opportunity to modernise and enhance industry-leading solutions, ensuring they remain … reliable and scalable. As a Senior Java Developer , you will provide technical guidance and mentor a team of developers, fostering technical excellence and delivering high-quality software solutions. Working in an agile environment, you’ll collaborate with cross-functional teams to define, design, and implement innovative features while … mentoring junior engineers. Duties: Develop high-quality, performant, and reliable Java applications. Guide and mentor developers, including offshore teams and contractors. Oversee software architecture, ensuring seamless integration with various platforms. Gather and analyse requirements, refining features and technical solutions. Lead the estimation process and ensure development work is accurately More ❯

We are currently partnering with a global technology leader seeking a Senior Java Developer. You will be at the forefront of cutting-edge technology, shaping the way millions of users experience seamless digital solutions. This is an opportunity to modernise and enhance industry-leading solutions, ensuring they remain … reliable and scalable. As a Senior Java Developer , you will provide technical guidance and mentor a team of developers, fostering technical excellence and delivering high-quality software solutions. Working in an agile environment, you’ll collaborate with cross-functional teams to define, design, and implement innovative features while … mentoring junior engineers. Duties: Develop high-quality, performant, and reliable Java applications. Guide and mentor developers, including offshore teams and contractors. Oversee software architecture, ensuring seamless integration with various platforms. Gather and analyse requirements, refining features and technical solutions. Lead the estimation process and ensure development work is accurately More ❯