1 to 25 of 32 Java Software Engineer Jobs in London

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 ...

Full Stack Software Engineer React Typescript Java Banking London This is a new and exclusive opportunity for a Full Stack Software Engineer who is primarily front office focused with React (75%) and Java (25%) to join this thriving front office derivatives team in this … investment bank Role details Title: Full Stack Software Engineer Technical focus - React (75%) and Java (25%) Employer: front office banking derivatives Permanent role salary £85- £125,000 plus bonus and pension Location: London City and home working hybrid 50/50% Technical stack: primarily Front end React ...

Title: Full-Stack Java Software Engineer Location: London - Hybrid Day Rate: £600 per day - Inside IR35 Clearance: SC Clearance required The Role: We are seeking high-calibre Full-Stack Java Software Engineers to join a growing delivery team supporting UK clients. This is an opportunity … will be part of a collaborative, multi-disciplinary enterprise delivery team, taking a hands-on role in designing and building robust, scalable, and secure software solutions. The role requires not only strong coding expertise but also a solid understanding of industry best practice, engineering standards, and agile delivery. ...

Senior Software Engineer/Developer (Java AWS Kafka) London/WFH to £140k Are you a Java technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global, cloud-native, prime broker that is replacing … custody system, designed for today's complex global markets. The company is experiencing great success and is expanding into the UK. As a Senior Software Engineer you will take ownership of building a brand new Futures Trading platform for the UK, primarily using Java with a focus ...

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 ...

Senior Java Full Stack Software Engineer - Public Sector Digital Transformation Location: UK (Fully Remote) Type: Permanent Security Clearance: SC cleared/eligible Use your engineering expertise to improve services that millions rely on. We're hiring a Senior Software Engineer to join a mission-driven … quality engineering, enjoy mentoring others, and want your work to have real public impact, this role is for you. The Role As a Senior Software Engineer (Full Stack) you'll design, build and deploy scalable, secure and well-tested software solutions. You'll contribute to architecture decisions ...

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 ...

Lead Software Engineer – Java Microservices | London (1 day per week on-site) | £74,000 – £92,000 + Package We’re partnering with a leading UK bank to recruit a Lead Software Engineer with strong Java and microservices expertise. This is a hands-on role … building high-performance, scalable software for real-world, high-traffic systems. About the Role You’ll join a permanent feature team, taking end-to-end ownership of services, from design and development to testing, deployment, and optimisation. Your focus will be on building robust microservices that support high-traffic ...

Software Engineer (Java/Full Stack) | Contract-to-Perm | London Location: Liverpool Street, London (Hybrid - 2-3 days onsite) Rate: £550 per day (Inside IR35) Type: Contract-to-Permanent Start Date: Early to Mid-April 2026 The Opportunity We are looking for a versatile Software Engineer … long-term stability or a permanent developer looking to "test-drive" a major modernisation project before committing. The Role As a Full Stack Engineer, you will design and improve software that delivers business-critical capabilities for both customers and internal colleagues. You will work closely with stakeholders-including ...

Title: Full-Stack Java Software Engineer Location: London - Hybrid Day Rate: £600 per day - Inside IR35 Clearance: SC Clearance required The Role: We are seeking high-calibre Full-Stack Java Software Engineers to join a growing delivery team supporting UK clients click apply for full ...

Java Software Engineer – Data Engineering Up to £70,000 + bonus and benefits 4:1 hybrid in office – City of London Quant Capital is hiring for a small, high-performing market maker in London. This is a junior-to-mid role focused primarily on Java development … PostgreSQL. This is a growing team focused on data ingestion and building tooling for the wider firm. What you’ll do: Build and enhance Java backend services (APIs, batch jobs, integrations) used across the business Write clean, testable code with solid engineering discipline (testing, code review, debugging, production support ...

Java Software Engineer – Data Engineering Up to £100,000 + bonus and benefits 4:1 hybrid in office – City of London Quant Capital is hiring for a small, high-performing market maker in London. This is a junior-to-mid role focused primarily on Java development … PostgreSQL. This is a growing team focused on data ingestion and building tooling for the wider firm. What you’ll do: Build and enhance Java backend services (APIs, batch jobs, integrations) used across the business Write clean, testable code with solid engineering discipline (testing, code review, debugging, production support ...

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 ...

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 ...

Principal/Senior Java Engineer – Ultra Low Latency Trading Systems Location: London (Hybrid) The Opportunity A leading global quantitative trading firm is seeking an exceptional Java Engineer to join one of the highest-performing engineering teams in systematic trading. This firm operates at the forefront … latency technology, where software performance directly drives trading outcomes. The successful candidate will work on highly optimised, mission-critical trading infrastructure alongside elite engineers, researchers, and traders. This is a highly selective environment focused on technical excellence, ownership, and measurable impact. The Role You will design and build ultra ...

office presence on Tuesdays & Thursdays to collaborate, connect, and learn from peers while maintaining flexibility for meaningful work-life balance. Being an AI Principal Software Engineer at iManage Means... Being an AI Principal Software Engineer at iManage Means... You'll be at the forefront … higher in Computer Science with strong theoretical foundations in algorithms, data structures, and distributed systems 7+ years of engineering experience building and shipping production software Deep expertise in JVM ecosystem (Java/Scala) with proven ability to build high-performance, fault-tolerant systems Proven ability ...

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. ...

growing financial technology company is looking for a Senior Java Software Engineer to join its backend engineering team. This is a highly technical role focused on building and optimising high-performance, low-latency distributed systems. You’ll be joining a strong team of engineers in a business … Role You will join a small but highly capable engineering function and quickly become one of the most senior Java specialists in the business. The position starts as a hands-on senior individual contributor role, with scope to take on technical leadership responsibility soon after. Key Responsibilities Design ...

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 click apply ...

Lead/Senior Software Engineer for 12 month contract on site in London. Working for a Big 4 professional services firm delivering software projects. Java, Python, Cloud Native AWS, AI, DevOps, CI/CD - Jenkins/GitLab Lead/Senior Java/Python EngineersBig … Consultancy 12 month contract On site in London Location : London (5 days in office) Duration 12 months Key Skills Proficient in Java/Python concepts and proficient advanced experience. Hands-on practical experience delivering system design, application development, testing, and operational stability, particularly in cloud environments. Advanced knowledge ...

Please find the Job Description:- Role: Senior Java Developer Location: Farnborough/UK (Hybrid) Hybrid mode of work Exp range:8+ years Mandatory skills: Java Springboot, Java 17/11, AWS, Pipeline, Financial domain, Spark. JD: Java Tech Lead job involves leading and mentoring a Java development team, analyzing and designing software solutions, ensuring adherence to best practices and coding standards, and collaborating with product managers and other stakeholders to deliver high-quality products for the financial services industry. Key responsibilities include coding, debugging, and maintaining applications, conducting code reviews, troubleshooting complex technical issues ...

Senior Software Engineer/Developer (Java AWS Kafka) London/WFH to £140k Are you a Java technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global, cloud-native, prime broker that is replacing ...

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 ...

leading technology firm in Greater London seeks an AI Principal Software Engineer to innovate at the intersection of AI and real-world applications. You will collaborate with a diverse team to turn research into production, enhancing client experiences with AI-driven solutions. Candidates should have a strong software engineering background, with expertise in Java or Scala, and a passion for solving complex challenges. This position allows for a hybrid work environment, with a commitment to inclusivity and employee well-being. #J-18808-Ljbffr ...