1 to 25 of 45 Java Software Engineer Jobs in the UK

Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research … machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some ...

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 ...

Principal Software Engineer/Developer (Java SpringBoot AWS) London/WFH to £120k Are you an experienced Java focussed Software Engineer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. As a Principal Software Engineer you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within the financial services sector and with a focus on migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments. ...

Backend Software Engineer/Developer (Java Kotlin AWS API) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Backend 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 Backend 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 ...

Backend Software Engineer (Java) 7 Months initial contract 4 Days per week on site in Basildon £503 per day (Inside IR35) My client in the automotive industry are seeking an experienced Senior Backend Software Engineer to join their Identity Management Services team, focusing … your deep engineering expertise to elevate the team's technical standards and foster a culture of excellence in backend engineering. Skills Required: - Proficiency in Java - Java Framework - Web development - DevOps practices (CI/CD, version control) - Security and identity management - Monitoring and logging - Relational databases - Server-Side technologies ...

Software Engineer | Java | Bristol | Hybrid We're supporting one of our best Tech for Impact clients who are making a genuine difference to people's lives and their Engineering team is a big part of how they do it. With around 65 engineers across Bristol and London … they're building smart, scalable software that keeps hundreds of thousands of customers moving, and they are the nicest people ever! The role We're supporting the hire of a mid-level Software Engineer (3-5 years ish experience) to join an established, cross-functional product team. ...

Software Engineer (Java) £55,000-£65,000 + package Remote - South Wales office (On-site a couple times p/month) Eligible for Security Clearance (must have resided in the UK for the last 5 years) CPS Group are working with a South Wales-based Tech organisation … recruit a Software Engineer to join a highly skilled, collaborative engineering team delivering enterprise-scale solutions in an agile environment. You'll be working primarily with Java, which is essential for this position, while also contributing to Frontend services as the platform evolves. While Angular experience ...

Software Engineer (Java) Location: UK/Ireland (remote) Please note : You need to be based in the UK or Ireland No Visa sponsorship offered Salary: Up to £50k Engineer systems that power real-world commerce. Our client is building the next generation of capabilities that power … unnecessary process. If you’re driven by impact and enjoy solving meaningful technical challenges, this could be an excellent fit. The Role As a Software Engineer, you will design and develop backend services, APIs, and portal systems that operate within high-availability payment processing platforms. Working within ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote We’re recruiting for experienced Java Engineers with strong experience working with Legacy Java versions (Ideally Java 8). This 6-Month contract is determined as Inside IR35 and is offered … Hybrid remote basis requiring 1/2 days per week of onsite work in Swindon or London. Key Requirements Strong commercial experience with Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful ...

Java Backend Engineer | GNST POD Location: Burgess Hill (Hybrid: 3 days per week onsite MUST ) Level: Mid-Senior (Up to 5 years experience) Are you passionate about building high-availability, distributed systems? We are looking for a Java Backend Engineer to join our GNST … Burgess Hill. You’ll be at the heart of our development lifecycle, crafting world-class software that powers customer-facing and business-critical applications. If you thrive in an Agile environment and have a knack for Microservices and Event-Driven Architecture , we want to hear from you. The Role ...

Senior Software Engineer (Java/Python/Cloud & AI) We're looking for a Senior Software Engineer to join a high-performing technology team building scalable, cloud-native applications and AI-powered solutions within a fast-paced enterprise environment. You'll work as part … helping shape the future direction of modern AI-enabled systems. What you'll be doing Designing, developing, and maintaining secure, scalable backend applications using Java and Python. Building and optimising cloud-native services and distributed systems within AWS environments. Developing intelligent search and AI-driven workflows, including semantic search ...

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 ...

Contract Senior Software Engineer (Java or Python) | Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer, to work across the following responsibilities: Develop and support … production-grade code Provide production support, working with Platform and SRE teams as needed Key Requirements: Technical: 8+ years commercial experience in Python or Java across the full development lifecycle 5+ years in financial services (buy-side strongly preferred) Solid relational database skills; MS SQL Server a strong plus ...

Contract Senior Software Engineer (Java or Python) | Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer, to work across the following responsibilities: Develop and support … production-grade code Provide production support, working with Platform and SRE teams as needed Key Requirements: Technical: 8+ years commercial experience in Python or Java across the full development lifecycle 5+ years in financial services (buy-side strongly preferred) Solid relational database skills; MS SQL Server a strong plus ...

Software Engineer - Java/Back End Hybrid - 2 days per week in the office Java, PostgreSQL, API We are looking for an experienced Back End Developer with excellent Java, PostgreSQL and API skills due to software development moving from an outsourced model … highly involved with knowledge transfer, including code walkthroughs, pairing sessions, and documentation reviews with the outgoing external team. Gain understanding of the current Java application architecture - service boundaries, dependency injection patterns, build system, and deployment configuration. Design and implement new back-end features, enhancements, and bug fixes in Java ...

IMMEDIATE JOINERS !! Java Software Developer Location: London 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, collaborating with teams … 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 ...

Senior Java Engineer – Low Latency Trading London/New York (Hybrid) Skills: Java, Java 23, Low Latency, Trading Platforms, Market Data, Aeron, Kafka, Chronicle, FIX Artemis Talent is partnering with a leading trading technology firm building high-performance, real-time trading systems used across global markets. … sensitive infrastructure across order management, execution, and market data where performance and reliability are critical. The Role Design and build low-latency, high-throughput Java systems Optimise performance across latency, concurrency, and memory Contribute to mission-critical trading platforms (OMS/EMS, market data) Work closely with engineering ...

Senior Software Engineer - London Harrington Starr are working alongside a unique financial trading technology firm who are seeking 10+ Senior Java Developers to join their Core Development team and build out low latency systems. You absolutely have to have is a demonstrable interest in technology, precision … successful candidate will have strong appreciation of Linux, common design patterns, and be a practitioner of TDD. For the role of the Senior Java Engineer you will need the following skills: Strong knowledge of Core Java development, ideally in a low latency/real time environment Strong ...

Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves … mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute to software architecture decisions, ensuring alignment with project and business goals. Mentor ...

Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves … mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute to software architecture decisions, ensuring alignment with project and business goals. Mentor ...

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 - Microservices | Payments | Enterprise-Scale Systems Were looking for an experienced Senior Java Developer to join a high-performing engineering team delivering large-scale, business-critical platforms in a complex enterprise environment. This role is suited to someone who enjoys solving real business problems … through strong engineering practices, modern architecture, and clean, scalable code. Youll work across the full software development lifecycle, partnering closely with product, architecture, QA, and production teams to deliver resilient, high-quality solutions. Key Responsibilities Design, develop, and optimise secure, scalable Java-based applications Build and support high ...

Java Developer - multiple roles £550-570/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. ...

client - a global automotive systems industry leader - is looking to hire an Principal AI Software Engineer (Java) to join them on an initial 6-month contract, with a view to transition to permanent employment. This role will be operating as part of a high-functioning team focused … Code, Copilot). This role is remote-working (with some occasional visits to site), and will be operating inside IR35. Requirements Deep expertise with Java/Spring/AWS Hands on production grade experience - or leastPoC forLLM's They will be creating agents and creating code that ...

looking to recruit an experience Java Software Engineer who has experience of developing IT Security Applications. Experience of developing AI integrated applications would be a real advantage. In this role you will working in Java on the development of new IT Security Applications to protect Microsoft ...