1 to 25 of 38 Java Software Engineer Jobs in the UK

exciting opportunity for a Java Software Engineer has arisen with a leading semiconductor company specialising in high-performance mixed-signal processing, based in London. This is an exciting opportunity for a Java Software Engineer to design and evolve cross-platform applications, SDKs, and developer … tooling. You’ll work closely with UX specialists, hardware teams, and software engineers to build polished internal tools that power advanced hardware configuration and tuning workflows. You will commit to a hybrid working model, with a minimum of one day per week onsite in the London office. Experience ...

World Class Defence Organisation is currently looking to recruit a Java Software Engineer subcontractor on an initial 12 month contract. Job Title: Java Software Engineer Rate: £65.00 per hour Location: Bristol Hybrid/Remote working: The role will be onsite a compressed … quarter Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Interview Process: One stage Video Interview Java Software Engineer Job Description: The team, at the Bristol facility, develop solutions for the next generation of Air Defence Systems; developing evolving products ...

Java Software Engineer 12 month contract Based in Bristol Offering 65ph Inside IR35 Do you have experience with Java? Do you have experience in RTOS? Do you want to work with an industry-leading company? If your answer to these is yes, then this could … role for you! As the Java Software Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable ...

Backend Software Engineer/SRE (Java JVM) London/WFH to £110k Are you a Backend Software Engineer/SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global CFD trading … company that has been consistently voted as one of the UKs top employers. As a Backend Software Engineer/SRE you will collaborate with development teams, as a trusted technical advisor to influence system design, ensuring reliability standards and driving improvements across the platform. You'll have ...

Java Software Engineer Bristol (Hybrid – 3 days per week) Up to £60,000 Climate Tech Want to grow your backend skills while working on meaningful climate technology? The software you build will support organisations working to better monitor infrastructure, improve operational safety, and accelerate the transition … systems. Their technology brings together sensor data, cloud platforms, analytics, and geospatial insights to provide greater visibility into real-world operations. By combining modern software engineering with environmental innovation, the company is helping drive more efficient and sustainable infrastructure management. The Role We’re looking for a Java ...

Level: Java Engineer (up to £45,000)/Senior Java Engineer (up to £60,000) + bonus, benefits, and sign-on bonus Location: Newcastle (hybrid) Function: Backend Java Engineering Industry: Public Sector/Enterprise Software Delivery Clearance: Must be eligible for UK Security Clearance … public sector and large enterprise environments. The Newcastle Advanced Technology Centre (ATC) hosts a large, collaborative technical community spanning backend, frontend, and DevOps. The Java engineering team focuses on backend development, delivering high-quality, enterprise-grade solutions with an engineering-first culture and hands-on technical environment. What ...

Java Software Engineer 12 month contract Based in Bristol Offering £65ph Inside IR35 Do you have experience with Java? Do you have experience in RTOS? Do you want to work with an industry-leading company? If your answer to these is yes, then this could … role for you! As the Java Software Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable ...

Lead Software Engineer - Java Have you got experience in setting technical vision, influencing system design, and guiding teams in delivering secure, scalable, and high-performing services? In this role, you will focus on technical leadership with mentoring others, driving engineering excellence, and ensuring the backend strategy aligns … backend discipline across teams. Lead design sessions, code reviews, and collaborative technical discussions. Skills & Experience Proven experience as a senior or lead backend engineer with Java (11+) and Spring Boot. Expertise in designing and leading backend architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice ...

Staff Software Engineer/Developer (Java JVM Kotlin AWS React) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded … using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care. As a Staff Software Engineer you will collaborate with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech ...

Java Software Engineer - DV Cleared - Onsite As a DV-cleared Software Engineer in Gloucester, you'll develop impactful solutions for government clients, working on Java and Ansible technologies. This role offers a collaborative environment with opportunities to mentor, learn new skills, and contribute … vital projects. What You'll Do: Design, develop, test, and document software systems using Java Focus on data processing using Ansible Support cloud infrastructure (AWS, Docker, microservices) Mentor junior developers and analyse code defects Collaborate in an Agile team environment Requirements: Must have active DV Clearance: UKIC ...

Java Software Engineer – Defence, Cyber & Intelligence | Full-Time | eDV Clearance Required We are seeking Software Engineers at all levels to join a leading aerospace and defence organisation, delivering mission-critical software for high-impact programmes in the Defence, Cyber, and Intelligence sectors. You'll work … across the UK. This is a fantastic opportunity to contribute to meaningful projects while enjoying flexible working arrangements and excellent development opportunities. Key Responsibilities: Software design, development, and debugging on secure systems Creating and maintaining test frameworks (e.g., JUnit 5) Developing in Linux environments with modern languages (Java ...

Java Software Engineer - Defence, Cyber & Intelligence | Full-Time | eDV Clearance Required We are seeking Software Engineers at all levels to join a leading aerospace and defence organisation, delivering mission-critical software for high-impact programmes in the Defence, Cyber, and Intelligence sectors. You'll work … across the UK. This is a fantastic opportunity to contribute to meaningful projects while enjoying flexible working arrangements and excellent development opportunities. Key Responsibilities: Software design, development, and debugging on secure systems Creating and maintaining test frameworks (e.g., JUnit 5) Developing in Linux environments with modern languages (Java ...

Java Software Engineer Edinburgh, Hybrid Ready to make an impact in the space technology sector? Join a pioneering, fast-growing company thats redefining how space-based systems and services are developed and operated globally. This is a fantastic opportunity to contribute to the design and development … innovative software products, working on cutting-edge technology that supports everything from university research to commercial space missions. Whats On Offer: Salary up to £45,000 Hybrid working in Edinburgh 36 days annual leave 6% employer pension contribution Health cash plan, life assurance and enhanced sick pay Ongoing investment ...

Senior Java Engineer (Core Java) £115,000 - £145,000 Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some … throughput distributed systems, solving complex engineering problems at scale within a collaborative, high-performing team. Key Responsibilities Design, build and maintain high-performance distributed Java services Contribute across design, development, testing, deployment and support Collaborate closely with other engineers to deliver customer-centric solutions Mentor and be mentored within ...

Senior Java Engineer – Hybrid, London Are you a talented Java developer ready to take ownership of your software and make a real impact? We’re looking for a Senior Java Engineer to join our team in London (hybrid) and help shape event-based customer … communications platforms while embracing cutting-edge DevOps practices. What You’ll Do Develop high-quality, scalable Java applications using Spring Boot and modern frameworks. Work with Microsoft Azure , Terraform , and CI/CD pipelines to deliver robust solutions. Take full ownership of your systems, driving reliability, maintainability, and performance. ...

Java Software Engineer Edinburgh, Hybrid Ready to make an impact in the space technology sector? Join a pioneering, fast-growing company thats redefining how space-based systems and services are developed and operated globally. This is a fantastic opportunity to contribute to the design and development … innovative software products, working on cutting-edge technology that supports everythin click apply for full job details ...

IMMEDIATE JOINERS !! Senior Java Software Developer Location: Bournemouth/Glasgow Work Mode: On-site Job Type: Full-time The Role We are looking for a Java Full Stack Developer who A Java Developer (2-5 years experience) designs, codes, tests, and maintains scalable Java applications … Development: Design and develop high-volume, low-latency applications for mission-critical systems. Back-End Excellence: Write clean, maintainable code using Java and the Spring Boot ecosystem. Front-End Innovation: Build responsive, user-friendly UI components using React, Angular, or Vue.js . Database Management: Design and optimize schemas ...

Backend Software Engineer | High-Growth HealthTech Scale-Up | London (Hybrid) We are working with a fast-growing digital healthcare platform. This is a rare opportunity to join a company where engineering genuinely shapes product, and where the work has measurable real-world impact at scale. The Role … Backend Software Engineer joining a collaborative, Agile engineering team, working across a portfolio of market-leading consumer health products. Every engineer here has meaningful ownership from day one. Day-to-day you'll be designing, building and testing new features, partnering closely with product and design, mentoring ...

Staff Software Engineer/Developer (Java JVM Kotlin AWS React) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded ...

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 ...

Staff Software Engineer | Enterprise Technology Hub Location: Glasgow (Hybrid - City Centre) Role Type: Contract-to-Permanent Daily Rate: Up to £550 per day (Inside IR35/PAYE) Sector: Global Tier 1 Institutional Technology The Opportunity We are seeking a high-caliber Staff Software Engineer to spearhead … hosting platforms from legacy systems to Kubernetes-based environments on GCP or AWS. Full-Stack Delivery: Architect and maintain robust, scalable applications using Java 17+ and Angular . Data Modernization: Oversee complex data migrations, including Elasticsearch upgrades (v2 to v8) and transitioning operational databases from Oracle to PostgreSQL. Stakeholder ...

Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry … leading staff tenure. This hire will be part of a core Software Engineering team, responsible for the vast majority of all applications in the business from front-to-back office.This includes Order Management & Trading Execution, Risk & Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business ...

Java Developer - multiple roles £510/day Inside IR-35 6 month contract Active SC required Remote with occasional travel to London for client meetings only - expensable We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. … work in multidisciplinary teams delivering secure, reliable and scalable systems. The role is hands-on and focused on building high quality software using modern engineering practices. What you'll do You'll design, build and maintain Java based microservices, applying test driven development and following established engineering standards. ...

Backend Software Engineer/SRE (Java JVM) London/WFH to £110k Are you a Backend Software Engineer/SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global CFD trading ...

Role: Software Engineer (Java) – Up to £120,000 + Bonus + Package Salary: Up to £120,000 + Bonus + Package Location: London (Hybrid Working) Skills: Java as a main language This firm is an elite fintech company with exceptionally high standards, renowned for building cutting ...