1 to 25 of 30 Java Software Engineer Jobs in the UK

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 Kafka) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What … Software Engineer/Developer you will earn a highly competitive package: Salary to £90k Hybrid working (x2 days WFH per week) Pension, Life Assurance, Income Protection Private medical care for you and your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family ...

Backend Software Engineer/Developer (Kotlin Java Spring Boot) London/WFH to £80k Are you a backend focused technologist with real-time financial systems experience? You could be progressing your career as a Backend Software Engineer at a highly successful financial software house … whose award winning software enables customers to build high-performance web trading apps that deliver real-time information securely and reliably. What's in it for you: Salary to £80k Pension, Income Protection, Life Assurance Private medical and dental care Gym membership Childcare vouchers, cycle to work scheme, season ...

Staff Software Engineer/Developer (Kotlin Java JVM) 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 by two highly successful … shares package Impactful role with excellent progression opportunities Opportunity to work on tech for good to positively benefits society Your role: 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. ...

Contract Software Engineer (Java/Microservices/Azure/SQL) - HealthTech - Outside IR35 - £500-£550pd - Fully Remote - 6 Months Are you an experienced Backend Software Engineer looking for your next outside IR35 contract My client, an innovative HealthTech company , is seeking a talented Java Engineer to join their platform team on a fully remote, 6-month contract . Role Overview: You'll play a key role in enhancing and integrating core backend services that power a modern healthcare platform. The focus will be on Java-based microservices , API integrations , and Azure ...

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 a click apply for full job details ...

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. ...

Java Software Engineer - Payment Processing This is a fantastic opportunity to grow and evolve within a Software Engineering function with the opportunity to improve the software development process, methodologies and tools through applied experience, automation and simplification. This global payment processing companyare building the next … partner needs, problems, and expectations and taking action to address expectations through high quality, innovative solutions that deliver value to our customers. Improving the software development process, methodologies, and tools through applied experience, automation, and simplification. Assisting with software deployment activities to internal test environments and production data ...

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 ...

Software Engineer (Java) To support their aggressive growth targets, my client have identified the need for bespoke systems to streamline and automate their existing production processes. Successful applicants have the exciting task of forming their in-house Software Department, with the key target to develop … make use of cutting edge technology to enable the development of a best in class product. Key responsibilities: Work with the rest of the Software Department team to continually design and develop state of the art production software Contribute to all stages of the development lifecycle Define application ...

Senior/Lead Software Engineer (Java) Permanent Manchester-based (Hybrid with 3 days in the office) Salary DOE - £95,000 - £145,000 + attractive benefits + bonus The client is continuing to scale their engineering presence in the UK as part of a broader US-UK expansion. … this is one of the first hires for a team that is expected to grow quite quickly. This is a role for a Senior Software Engineer with a focus on Back End development with Java as the primary language. It involves improving and extending existing systems, with ...

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 ...

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 ...

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 ...

Backend Software Engineer/Developer (Java Kafka) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What … Software Engineer/Developer you will earn a highly competitive package: Salary to £90k Hybrid working (x2 d click apply for full job details ...

Software Engineer (Java/AWS) Manchester (flexible/hybrid) | Initial 6 month contract | £500-550pd inside IR35 We're supporting a major transformation programme within a global business, building out a brand-new engineering team to modernise critical financial data systems. This is a key role … helping ensure data flowing into a new SAP environment is accurate, compliant and fit for purpose. What you'll be doing Building and enhancing Java-based backend services supporting financial data flows Designing and improving end-to-end data pipelines across multiple product domains Ensuring data is correctly structured ...

Graduate Quant Software Engineer (C++/Java – Trading Systems) | £55,000–£77,000 | Hybrid (London/Remote) Build technology that powers real trading. Join a high-performance engineering team developing low-latency, resilient backend systems used in live trading environments. You’ll work on complex technical challenges … from day one, building software that genuinely impacts how markets operate — not just writing code in the background. This is a fast-growing fintech where strong engineers progress quickly into Senior, Low-Latency, or Quant-Engineering tracks within 12–24 months. What You’ll Do Design, build, and optimise ...

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. ...

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 ...

Staff Software Engineer/Developer (Kotlin Java JVM) 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 by two highly successful ...

Senior Java Engineers — Contract - (Financial Services/Investment Management) Location: London (Hybrid – Ideally 2 Days Per Week) Engagement Type: Contract IR35 Status: Outside IR35 Day Rate: £600 - £700 Per Day (Monthly Pay) Our client is a leading UK investment management platform currently undertaking a major back-office transformation programme. … stage will be working on technically complex integration and platform problems with real impact across the business. Role Overview We are seeking multiple Senior Java Engineers to join the programme engineering team. You will be responsible for designing and delivering robust, high-performance Java services that integrate with ...

Full Stack Software Engineer Join a trusted supplier delivering mission-critical solutions in the defence and national security sector. You will work on leading-edge technologies across AI/Data Science, Cyber, Cloud, DevOps/SRE, and Platform Engineering, developing solutions that protect people, platforms, and information against … constantly evolving threats. The Role As a Full Stack Software Engineer, you will design, develop, and maintain mission-critical softwares. You will work on novel products that combine physical and digital systems, collaborate closely with clients to define strategy, and explore emerging technologies. Key responsibilities include: Writing clean ...

Software Engineers (Java/Data Platform) Remote First (Must be UK based with full right to work with no sponsorship) £75,000–£95,000 **Monthly meetups in London - fully expensed/optional. Access to offices should you prefer I’m working with a global consumer platform processing millions … data, distributed systems and product, working on one of the most unique user datasets in its space. They’re looking for a Senior Engineer to join a small, high-impact team. The role You’ll be working on systems that ingest, process and make sense of large-scale, messy ...

Overview We are seeking a Senior Java Developer to join a regulated banking environment in London. You will work on cloud-native services using a modern Java stack, contributing to secure, resilient platforms that support critical banking products. Key Details Location: London, Greater London, United Kingdom Rate … Contract: Minimum 6 months, high potential to extend Work pattern: 2 days per week, onsite Responsibilities Design, build and maintain Java microservices and APIs using Spring Boot. Own delivery end-to-end: requirements clarification, implementation, testing, deployment and support. Improve engineering practices, code quality, observability and operational resilience. Work ...