1 to 25 of 34 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 ...

Senior Software Engineer/Developer (Java Python Messaging) London/WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance/trading environments? You could be progressing your career in a hands-on Senior Software Engineer … that support fertility, pregnancy and menopause Employee Assistance Programme Retail discounts and more Continuous training and career progression opportunities Your role: As a Senior Software Engineer you'll design and develop real-time pricing and risk systems, collaborating closely with traders in a front office environment. ...

Software Engineer/Developer (Java Mathematics) WFH/Surbiton to £50k Are you a 'mathematically minded' Software Engineer looking for an opportunity like to progress your career working on complex and interesting systems? You could be joining a global geoscience technology company within … exploration. As a Software Engineer you'll join a supportive Agile team responsible for the company's highly complex web based data management platform/client portal. You'll gain exposure to the full software development lifecycle working on new features and enhancements as well as maintaining ...

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 ...

Senior Software Engineer/Developer (Java Python Messaging) London/WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance/trading environments? You could be progressing your career in a hands-on Senior Software Engineer ...

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 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 - DV Cleared - Onsite Maximise your chances of a successful application to this job by ensuring your CV and skills are a good match. As a DV-cleared Software Engineer in Gloucester, you'll develop impactful solutions for government clients, working on Java … collaborative environment with opportunities to mentor, learn new skills, and contribute to vital projects. What You'll Do: Design, develop, test, and document xkybehq software systems using Java Fo Please click on the apply button to read the full job description ...

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 ...

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 ...

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) £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 ...

Software Engineer/Developer (Java Mathematics) WFH/Surbiton to £50k Are you a 'mathematically minded' Software Engineer looking for an opportunity like to progress your career working on complex and interesting systems? You could be joining a global geoscience technology company within ...

Senior Java Engineer – Customer Communications Platforms We’re hiring a Senior Java Engineer to build and run event-driven customer communications platforms at scale. You’ll design and own Java (Spring Boot) microservices that power real-time messaging, notifications, and customer interactions. This … DevOps environment—your team builds, deploys, and supports what you create. What you’ll do Build scalable, event-driven Java/Spring Boot services Own the full lifecycle: design → deploy → run Work on real-time customer messaging systems Collaborate across engineering, platform, and product teams What we’re looking ...

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 ...

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 ...

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 ...

Location: London (Hybrid) Salary: Up to £95,000 + bonus + benefits Permanent A leading Tier 1 investment bank is hiring a Java Software Engineer to join a front-office aligned Equities Risk technology team in London. This is a high-impact role focused on building … with a strong focus on: Improving latency, performance, and platform efficiency Building event-driven, distributed systems handling large volumes of market data Developing containerised Java services within a modern cloud-native stack Working in a front-office environment with direct business exposure This is an ideal opportunity ...

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 ...

Location: London (Hybrid) Salary: Up to £95,000 + bonus + benefits Permanent A leading Tier 1 investment bank is hiring a Java Software Engineer to join a front-office aligned Equities Risk technology team in London. This is a high-impact role focused on building ...

Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13 billion. Job Description- Job Title: Senior Java Engineer Must Haves- Java, Kafka, Microservices, Spring Boot, Postgres and AWS The Opportunity: We are looking for ambitious and motivated individuals … enabling customers to manage their finances and protect and build their financial futures. Purpose: To cope with our expansion, we are looking for Senior Java Engineers to join our mission and help us build a global product that's scalable, reliable and secure. You will work in tribes alongside ...

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 ...

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 ...

Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote, adhoc; Leeds, London or Manchester) Project Overview This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernising critical healthcare systems, improving access … secure, and interoperable digital services that support high-volume user interactions and integrate with multiple systems across the healthcare ecosystem. The Role As a Java Developer, you will be responsible for designing, building, and maintaining high-quality backend services within a complex, distributed system. You will work closely with ...

Senior Java Engineer (VP) - FX Options Up to £160k on the base We are seeking a highly skilled FX Options Java Developer to join a front-office electronic trading team within a leading global financial institution. This role sits at the heart of the FX eTrading business … closely with trading, sales, and quantitative teams to deliver innovative solutions in a fast-paced environment. Key Responsibilities Design, develop, and maintain high-performance Java-based systems for FX options trading and market making Contribute to the development of pricing engines, volatility surfaces, and trading algorithms Work on electronic ...