1 to 25 of 51 Java Software Engineer Jobs

Java Software Engineer is sought on a contract basis by a market FinTech with hubs across the UK. This Java Software Engineer will be tasked with building complex, highly scalable greenfield solutions with international scope. As such experience working on enterprise grade microservices architected … applications is a key must have. This Java Software Engineer should have most of the following key skills: - At least 5 years commercial java experience ideally gained building enterprise grade applications - Strong framework experience (spring, hibernate, spring boot etc) - Strong RDBMS experience - NoSQL, MongoDB etc - Troubleshooting ...

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 … will be calculated at time and a quarter Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Java Software Engineer Job Description: The team, at the Bristol facility, develop solutions for the next generation of Air Defence Systems; developing evolving ...

Senior Java Software Engineer - User Interfaces Location: Office basedGuildford, GU1 4QU Salary: Circa £50K - £85K per annum, DOE + Benefits, Bonus and Relocation Contract: Full time, Permanent Benefits: Competitive salary, Annual bonus, Private medical insurance, Membership fees to professional organisations, such … Kaon's success is a result of the skills and effort of our engineering team which is made up of signal processing, acoustic, software and systems engineers. Due to our continued success, we are looking to expand our highly skilled engineering team. The Role: We are currently seeking ...

Java Software Engineer Bristol (Hybrid – 3 days per week) Up to £50,000 ClimateTech Want to grow your backend skills while working on meaningful climate tech? At Bohr, the software you build helps reduce methane emissions across Europe’s gas networks. This is an opportunity … high-potential junior or early mid-level Java engineer to work on real-world systems that directly support cleaner, safer infrastructure and the transition to net zero. About Bohr Bohr exists to decarbonise energy through innovation. Through our methane emissions division, Tectrac, we combine mobile leak detection technology ...

Java Software Engineer (Developer/Senior/Principal) Complex Systems | Modern Stack | Agile & XP Culture Remote First (office visit approx. once per month - South Manchester) £50,000 - £85,000 + Bonus + Excellent Benefits (level dependent) We're partnering with a long-established technology business building modern … platforms at the heart of a complex, highly regulated domain. With continued growth across their product suite, they're now hiring Java Software Engineers across multiple levels - Developer, Senior, and Principal - to join their Scrum teams and help deliver software that genuinely makes a difference. The Opportunity ...

Backend Software Engineer/Developer (Java AWS Spring) London/WFH to £90k Are you a backend focussed technologist who enjoys building systems from scratch? You could be progressing your career at a global, prime broker that is replacing the legacy infrastructure used across capital markets with … today's complex global markets. The company is experiencing great success in the US and is expanding into the UK. As a Backend Software Engineer you will join a small team responsible for building a brand new Futures Trading platform for the UK, primarily using Java with ...

Java Software Engineer Active SC Clearance Contract Length: Initial 3-month contract £400-£480pd (Inside IR35) Working Pattern: Flexible fortnightly on-site visit to a convenient Available Locations: Glasgow, Newcastle, Leeds, Sheffield, Manchester, Birmingham, Blackpool, Cardiff, London Role Overview We are seeking an experienced Java Software Engineer to join an agile delivery team working on modern, scalable services. You will design, build, and test high-quality software in a collaborative, fast-paced environment, contributing to systems used by both internal and external users. Key Responsibilities Design, develop, and maintain Java-based microservices ...

Java Software Engineer Active SC Clearance Contract Length: Initial 3-month contract £400-£480pd (Inside IR35) Working Pattern: Flexible fortnightly on-site visit to a convenient Available Locations: Glasgow, Newcastle, Leeds, Sheffield, Manchester, Birmingham, Blackpool, Cardiff, London Role Overview We are seeking an experienced Java Software Engineer to join an agile delivery team working on modern, click apply for full job details ...

client, a trusted partner of the UK's Ministry of Defence, is seeking an experienced JAVA Software Engineer. This role offers the unique opportunity to develop innovative solutions for next-generation Air Defence Systems, ensuring the highest standards of safety, performance, and dependability. What do you need … strong background in software engineering, its realisation and system wide impact. Experience of working in Java Collaborative, open approach to development and have the ability to work well in a team and maintain momentum during development. Experience of working across the entire software development process from engaging ...

Full Stack Java Software Engineer (React.Js) required for my client in London. Paying £50k-£75k. My client are a growing B2B & B2C technology company. They require a Full Stack Java Software Engineer (React.Js) to join them on a full-time basis. This role … remote but there is expectation to ideally go to the office 1 day per week in London. Required experience Java 18+ experience Spring/Spring Boot PostgreSQL or similar Maven/Gradle REST APIs Microservices React.Js Desirable: Vue.Js experience ...

Java Software Engineer required for long term contract assignment based in Bristol Skillset/experience required:* A strong background in software engineering, its realisation and system wide impact.* Experience of working in Java* Collaborative, open approach to development and have the ability to work well … team and maintain momentum during development.* Experience of working across the entire software development process from engaging with requirement authorities to automated target integration and proving, supported with effective documentation* Experience of new tools, techniques and approaches that might enable us to evolve our processes to improve our efficiency ...

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 ...

Java Software Engineer A leading trading firm in London is growing its engineering team and is looking for a high-performance Java Engineer to help build ultra-low-latency systems used directly on live trading desks. What You’ll Be Doing Designing and building … latency Java systems used in electronic trading Developing highly concurrent, multithreaded applications Optimising performance at the microsecond level Working closely with traders, quants, and infrastructure teams Improving throughput, stability, and execution speed Writing clean, well-tested production code What We’re Looking For Strong commercial experience with Core Java ...

Java Engineer | (Edinburgh) On site! | £550-£650 (Inside IR35) | 6 months initially (likely extension) | (Java, Spring Boot, Azure) We're looking for a Java Engineer, that has previous experience working with Azure for a range of exciting projects. Rate: £550-£650 (Inside IR35) Length … month initial contract, strong likelihood of extension Location: Scotland (fully on site) Key Skills & Experience: Strong core Java development background Experience with Spring Boot Exposure to Azure App Services Proficiency with CI/CD pipelines (Jenkins preferred) Terraform experience desirable Must have valid Right to Work ...

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 ...

Senior Java Engineer (Core Java) £100,000 - £130,000 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 ...

Role: Software Engineer Location: 1-2 days a week in London Salary: £80,000 - £115,000 + Bonus Are you a motivated java micro-services specialised software engineer looking to elevate your career? This is an opportunity for a technically minded individual to be designing … liaising with principal engineers, architects in the domain and other key stakeholders to understand how the platform works We are looking for a senior engineer we can find to take part in some of the largest up coming projects in the banking industry Ideal Candidate: We're looking ...

Role Overview We are seeking a Java Software Engineer to join a small, technically rigorous founding team building complex, data-intensive engineering systems. The role is remote-first, with periodic in-person collaboration in Oxford or San Francisco. The position involves close collaboration with the Founding Engineer on backend infrastructure, internal platforms, and system architecture. In addition to core software engineering responsibilities, the role requires precision in technical communication, documentation, and cross-lingual collaboration with external technical resources. Key Responsibilities Backend Engineering Design, implement, and maintain backend services using Java and Spring Boot . ...

Java Engineer (Edinburgh) On site! £550-£650 (Inside IR35) 6 months initially (likely extension) (Java, Spring Boot, Azure) We're looking for a Java Engineer, that has previous experience working with Azure for a range of exciting projects. Rate: £550-£650 (Inside IR35) Length ...

Software Engineer | Building Intelligent Systems That Make an Impact Central London 4 or 5 days a week on site Existing SC or DV Clearance is required National Security Sector An exciting opportunity has arisen for a Software Engineer to join a cutting-edge team developing impactful … contribute to projects such as AI-powered tools for analysts and operators, secure data pipelines, and innovative prototypes that explore new frontiers in software capability. You’ll become part of a tight-knit, highly capable engineering group that values independence, precision, and tangible outcomes. This is a place ...

Software Engineer | Building Intelligent Systems That Make an Impact Cheltenham 4 or 5 days a week on site Existing DV Clearance is required National Security Sector An exciting opportunity has arisen for a Software Engineer to join a cutting-edge team developing impactful, mission-driven technology. … contribute to projects such as AI-powered tools for analysts and operators, secure data pipelines, and innovative prototypes that explore new frontiers in software capability. You’ll become part of a tight-knit, highly capable engineering group that values independence, precision, and tangible outcomes. This is a place ...

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 ...

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 ...

Level Software Engineer (Java/AWS) Contract | £350 per day Inside IR35 | Hybrid (1 day pw London) We’re supporting a large, well-established UK organisation on a key digital delivery programme and are looking for two mid-level Software Engineers to join an existing engineering … cloud-based services. The role You’ll be working as part of a cross-functional engineering team, contributing to the development and maintenance of Java-based microservices running in an AWS environment. The team values: Clear communication Collaborative problem-solving Strong testing practices Pragmatic, well-documented solutions This ...