25 of 25 Permanent Java Developer Jobs in London

Java Developer/Software Engineer (AWS React Full Stack) London/WFH to £80k Are you a technologist Java Developer looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly … established Fintech start-up, set up by a small team of finance and technology entrepreneurs with a hugely successful track record. As a Java Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus ...

Lead Full Stack Java Developer - SC Cleared NEW PERMANENT OPPORTUNITY FOR A LEAD FULL-STACK JAVA DEVELOPER IN LONDON WITH SC CLEARANCE Location: London (Hybrid) Salary: £80,000 - £95,000 per annum Clearance: Active SC Clearance required To apply: email The Company Join a specialist technology … modernise secure systems that underpin national operations - tackling some of the most demanding challenges in government technology. The Role As a Lead Full Stack Java Developer , you will guide a small team of engineers while remaining hands-on in the design and development of high-performance, secure applications. ...

Senior Java Developer/Backend Software Engineer (Java Spring Boot) London/WFH to £85k Are you a Software Engineer looking for an opportunity where you can make an impact? You could be progressing your career in a senior, hands-on role at a growing US based … company that provide a platform for gaming and gambling businesses to retain their customer base, as they expand their UK presence. As a Senior Java Developer you will be instrumental in helping the company to bring all tech inhouse; you'll design and develop new features and enhancements ...

Lead Java Developer Location: Remote working with occasional travel Contract: Inside IR35, initially until the end of March Clearance: Due to the nature of the project and turnaround time - SC Clearance will need to be live and active. Role Summary We are seeking a Lead Java Developer with proven experience delivering solutions for Central Government projects. You will work in Agile Scrum teams alongside Java Engineers, Front-end Developers, and Quality Engineers to modernise legacy services into scalable, cloud-aligned platforms. This is a hands-on technical leadership role, responsible for design, code quality ...

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing … partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this ...

Contract Opportunity: SC-Cleared Java Developer (Spring Boot) - Immediate Start Location: London, twice a month onsite Clearance: Active SC Clearance required Contract Length: 6 months initially Start Date: Immediate Day Rate: £550 per day, Inside IR35 iO are urgently seeking an experienced SC-Cleared Java Developer ...

Back End Java Developer with experience within the iGaming and Gambling sector looking for a new and exciting challenge? BENEFITS : up to £95k depending on experience, fully remote, excellent benefits package You will be joining a rapidly expanding company within the iGaming sector, who are committed to providing … brands within our market, blending sports betting and online casino entertainment on a cutting-edge, custom-built platform. You will be a skilled Senior Java Backend Developer who is a self-motivated professional with a strong track record and a passion for excellence. You'll play ...

Java Full Stack Developer Permanent Croydon/Reading (Hybrid) £65,000 - £75,000 (DOE) + Benefits + Bonus Java Full stack Developer needed with AWS and ideally with (url removed) sector experience. Start ideally Dec 2025/Jan 2026. Working on a 'hybrid remote' basis from … work with a leading global IT transformation business on a large-scale IT modernisation programmes for Government clients. Key experience + tasks will include: Java Full Stack Developer with experience developing large-scale micro-services, messaging, web services + distributed systems. In-depth Java 8/ ...

Lead Java Developer - £140k, Equity, Sign-on Bonus Java25, Springboot, Microservices, AWS, TDD, React I am working with a high-growth FinTech that’s about to enter a huge new chapter.They are a fast-scaling FinTech that’s in the middle of a major rebrand, new name … decision, nothing is top-down. It’s collaborative, thoughtful, and engineers shape the how, why, and when behind the product.They’ve just upgraded to Java 25, which the team is genuinely excited about. With eight product teams spanning credit, payments, business tools, growth, and customer experience, engineers are placed ...

Senior Java Developer/Backend Software Engineer (Java Spring Boot) London/WFH to £85k Are you a Software Engineer looking for an opportunity where you can make an impact? You could be progressing your career in a senior, hands-on role at a growing US based ...

their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid … offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high ...

Role: Front Office Java Developer Salary: Up to £130k base salary + Bonus + Package Location: London (Hybrid) Skills Required: Extensive Java experience needed (ideally with versions up to 21) This firm is an elite investment institution that uphold extremely high tech standards. They are made … limits. They’ll find the best team to suit your skillset/interests but you'll be working with the latest versions of Java, directly with traders and quants to build out high performance pricing and analytics tools from scratch. This role is greenfield and will allow ...

looking for a senior Java developer with genuine legacy Java EE experience to help reverse-engineer and maintain a production JBoss 4.0.5/EJB 2.1/XDoclet system. This is not a Spring Boot role. It’s for someone comfortable working in pre-annotation Java EE environments. ✅ Must-have experience Java EE 1.4/5.0 era systems JBoss 4.x (or WebLogic 8/9, WebSphere 5/6) EJB 2.1 (CMP/BMP, Session Beans, EJB-QL) XDoclet 1.2.x (understanding + debugging code generation) Ant builds , legacy deployment descriptors MySQL 5.x, JDBC, JNDI ...

Join Barclays as a Java and Python developer and be involved in building the technology platform supporting the Barclays Quantitative Investment Strategies business (QIS). The team is working on a multi-year transformation programme to build a more capable, streamlined, and high-performance platform … enabler for the ambitious expansion of the Barclays QIS business. To be successful as a Java/Python developer within this team, you should have experience with: Java development - Core Java, Collections, Multi-Threading and Concurrency, OOPS concepts, Exception Handling, JVM Concepts, Spring Framework (Spring Boot ...

Sanderson are working closely with a SME based in the London who are looking to grow their Java Developer capability. The company are looking to modernise how organisations manage and derive data. They are fast growing and looking for dynamics people to help them grow the business … capability. Skills required for the role: Strong experience in Java software engineering. Experience with Spring Boot, REST APIs, and microservice architectures Knowledge of Docker and Kubernetes for containerisation Exposure to cloud platforms such as AWS This role will require eligibility to be clearable to SC level. ...

Junior Developer – Inspire Talent Academy Location: London, UK (Hybrid – 3 days on-site at Investment Bank client) Salary: Competitive + Benefits + Academy Training Package Start Date: Immediate and rolling intakes About Inspire Talent Inspire Talent is a global technology consultancy specialising in building exceptional talent pipelines for leading … unique opportunity to work inside a top-tier investment bank while developing your expertise through our Academy. Role Overview As a Junior Developer in the Risk and Pricing Technology team, you will contribute to the design, development, and maintenance of systems that support the bank’s derivatives trading, pricing ...

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over … customers by delivering inbound experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position ...

Sanderson are working closely with a SME based in the London who are looking to grow their Java Developer capability. The company are looking to modernise how organisations manage and derive data. They are fast growing and looking for dynamics people to help them grow the business ...

empower care teams and elevate standards within the care sector. Working closely with a diverse onshore and offshore team, you'll create clean, scalable Java code and develop engaging front-end solutions using Apache Tiles and React, supported by solid HTML and CSS skills. Your role will … delivering creative solutions that tackle real business challenges and meet user needs. We're looking for a talented developer who upholds high standards and works well with Product Management to estimate efforts, refine requirements, and quickly troubleshoot issues. Staying curious about emerging technologies, you'll help improve our clients ...

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your skills … work on meaningful, production-grade systems. What You'll Work On You'll be developing robust, secure, and efficient services using modern Java frameworks and tooling. Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives. Must-Have Skills Strong commercial experience with Java Hands ...

Java Full Stack Engineer Location: UK (Hybrid, with flexibility for client site travel) Type: Permanent Clearance: Eligible for UK security clearance Join a leading global consultancy driving digital transformation across industries. As a Java Full Stack Engineer , you'll work on high-profile projects that combine cutting-edge … collaborative, client-facing environment while growing your skills in a fast-paced consultancy setting. What You'll Do Build and maintain microservices using Java (Spring Boot) . Develop front-end applications with React, TypeScript , HTML, and CSS. Work with cloud platforms ( AWS, Azure ) and containerization tools ( Docker, Kubernetes ). ...

experienced Senior Java Game Engine Developer looking for a new challenge? If you enjoy solving complex technical problems and creating reliable systems, this could be a great next step for you. BENEFITS : £80,000 to £90,000 per year, depending on experience, 30 days holiday, Private healthcare, Pension … London based, hybrid working 3 days work from home About the Role In this role, you will take ownership of developing, enhancing and maintaining Java based game engine components. You will work on core frameworks, introduce improvements that support new features, and contribute to tools that help with performance ...

Required Skills & Qualifications 8+ years of experience in software development Strong proficiency in Java (8/11/17) and Spring Boot Hands-on experience with Kafka and asynchronous messaging Experience with API Gateway solutions (Apigee preferred) Strong knowledge of REST APIs, JSON, OpenAPI/Swagger Experience with ...

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your skills ...

Java Full Stack Engineer Location: UK (Hybrid, with flexibility for client site travel) Type: Permanent Clearance: Eligible for UK security clearance Join a leading global consultancy driving digital transformation across industries click apply for full job details ...