1 to 25 of 84 Permanent Java Developer Jobs in London

Senior Java Developer My customer is actively hiring a talented & eager Senior Java Developer to join their growing & dynamic team. The successful candidate will be responsible for designing, developing, and maintaining Java-based applications, contributing to the full software development lifecycle from concept to deployment … beyond. This role is ideal for a passionate and seasoned Senior Java Developer looking to further their career in a challenging and rewarding environment. Role Overview You will work on in-house systems, APIs, client reporting and web portal, as well as customising our third-party trading system. ...

Full Stack/Back End Java Developer - AI Location: London (Hybrid - 3 days onsite) Contract: 12 Months (PAYE) Rate: £550 per day PAYE (£66.94 per hour base rate, excluding holiday pay accrual) We are seeking an experienced Full Stack Java Developer , Back End Java Developer , or strong Front End Developer to join a high-performing engineering team on a 12-month PAYE contract based in London. This is an excellent opportunity to work on enterprise-scale applications, using modern development practices and AI-assisted coding tools to deliver innovative software solutions. Key Responsibilities ...

Java Developer - Public Sector - SC clearance required Java Developers needed who hold active SC clearance, to work on an exciting central government based project based out of London (95% remote role). As a seasoned Java Developer/Software Engineer, you'll have experience working … with: Central government transformation projects, ideally with GDS experience. Java backend development with microservices. Spring framework (Spring Boot) based web applications. AWS and/or Kubernetes. CI/CD mindset and an agile approach. A consultative approach to problem solving and solution building. You'll enjoy taking a collaborative ...

Senior Java Developer | Up to £140,000 | London (Hybrid - 2-3 days on site) I'm currently recruiting for a Senior Java Developer to join a leading technology team within a global banking organisation based in London. This is an exciting opportunity to work on complex … enterprise applications, modernising existing systems, building robust APIs and helping shape technical solutions within a large-scale environment. We're looking for a strong Java and Spring Boot developer with experience building enterprise-grade applications, working with microservices architectures and delivering secure, reliable software solutions. Banking or financial ...

Senior Java Developer - Java/Spring/AWS - Remote - £60,000 - HealthTech/Tech for Good Senior Software Developer required for a HealthTech, tech-for-good business delivering software that supports patient care and rehabilitation across the healthcare sector. Salary: £60,000 Location: Remote (UK) Great … benefits included This is a hands-on senior developer role, not purely architectural. You will design, build and maintain features on a live SaaS platform, working closely with product and clinical teams in a regulated healthcare environment. It's a genuine opportunity to work on technology with real, measurable ...

Full Stack/Back End Java Developer - AI Location: London (Hybrid - 3 days onsite) Contract: 12 Months (PAYE) Rate: £550 per day PAYE (£66.94 per hour base rate, excluding holiday pay accrual) We are seeking an experienced Full Stack Java Developer , Back End Java Developer , or strong Front End Developer to join a high-performing engineering team on a 12-month PAYE contract based in London click apply for full job details ...

personally, we ensure a bright future for NTT DATA and for the people who work here.NTT DATA is currently looking for a Senior Java Developer (hybrid: remote + London, Canary Wharf) for our growing team in the UK.Summary:We are seeking an experienced Senior Java Developer … Spring Boot, Microservices architecture, CI/CD pipelines, and DevOps practices to design, develop, and maintain scalable, cloud-native applications.Key Responsibilities:- Develop and maintain Java (Java 8+) applications using Spring Boot.- Design and implement Microservices-based architectures.- Build and expose RESTful APIs.- Implement and manage CI/ ...

Title: Senior Java Developer - Associate/VP Job Code: 13829 Country: GB City: London Skill Category: IT\Technology Job title: Senior Java Developer Corporate Title: Associate/VP Department: Global Execution Services – Instinet Crossing Technology Location: London (Hybrid) Company overview Nomura is a global financial services … technologies and has been an innovator at the forefront of the market's evolution. For more information, please visitwww.instinet.com. Role Overview As a senior Java Developer in the Crossing Technology team, the main responsibility is to develop, maintain, and improve the performance of Instinet’s Crossing Systems including ...

Java Developer at Barclays Join us as a FX Java Developer where you will be handling a large number of requests for a foreign exchange application, specifically, building a high-performance, low latency electronic trading, pricing, and risk management systems. To be successful in this role … will need: Demonstrable java development experience within FX application or domain Multithreading, scalable, and low latency application development Oracle – PL/SQL queries GIT CI/CD Other highly valued skills React KDb Telemetry You may be assessed on key critical skills relevant for success in role, such ...

looking for an experienced Senior Java Developer to join a growing engineering team building cutting-edge post-trade technology solutions within a cloud-first environment. This is an opportunity to work on business-critical applications, APIs, client reporting platforms and web portals while customising sophisticated trading systems used … designing and delivering enterprise-grade software while contributing to architectural decisions, development standards and engineering best practice. Responsibilities include: Designing, developing and enhancing Java-based applications, APIs and web platforms Customising and extending third-party trading systems Building scalable microservices and distributed applications Writing clean, maintainable, test-driven code ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation … chance to do it on a global scale and play a real role in shaping our exciting journey.**The role**As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services.This is a backend ...

Role Overview We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our Live Casino platform, ensuring it can support high‐concurrency gameplay, real‐time interactions, and a distributed microservices architecture. … Senior Java Developer, you will architect and develop backend systems that power our games, player management, reporting tools, and third‐party integrations. You will work closely with Product Owners, Frontend Developers, DevOps, and QA to ensure smooth, efficient, and secure platform operations. Key Responsibilities Design and implement backend ...

Frontend Java Developer – Fintech £90,000 Plus 10% to 40% Quant Capital is urgently looking for a Frontend Java Developer to join a well-known trading firm. No experience of finance is needed; finance isn’t what this firm does, tech is. Our client is innovative … desired: Tech Stack you will learn Hadoop and Flink RUST, Javascript, React, Redux, Flow Linux, Jenkins Kafka, Avro, Kubernetes, Puppet Involvement in the Java community My client is based in London. #J-18808-Ljbffr ...

Harvey Nash Group is seeking a experienced Full Stack/Back End Java Developer to work on enterprise-scale applications in London. The role involves developing RESTful APIs, working with AI-assisted coding tools, and collaborating across engineering teams in an agile environment. You will contribute to design … develop, test and maintain software using Core Java, Java EE, Spring Boot and modern front-end techs. #J-18808-Ljbffr ...

Senior Java Developer | 6 Month Contract | (Inside IR35) | Hybrid, Leeds/Sheffield/London (1 day per month)| Starting ASAP | SC Clearance Day Rate: £480 About the Role: Harvey Nash's Client have multiple requirements for Senior Java Developers, you must hold Active SC Clearance … confident of eligibility. Skills and Experience Strong, recent experience developing applications using modern Java and Spring Boot. Experience with legacy Java versions is advantageous. Experience developing front-end applications. Experience with Thymeleaf and the GOV.UK Design System is desirable. Experience designing and developing RESTful APIs, including API versioning. ...

html Job Opportunity: Java Developer Quant Capital is urgently looking for a Java developer to join our high profile client. Client Profile Our client is a well-known financial connectivity provider for the front office. They specialize in creating low-latency, high-volume transactions. Technology Stack … based developments primarily utilize Java, JavaScript, and HTML5. All server-side software is developed and deployed on Linux. Responsibilities The Java development team is currently responsible for... ``` #J-18808-Ljbffr ...

Role: Front Office Java Developer Client: Elite Investment Institution Compensation: Up to £130k Base Salary + Bonus + Package Location: London (Hybrid) Overview This firm is an elite investment institution that uphold extremely high tech standards. They are made up of exceptionally talented individuals who are passionate about … Role They will align you with the best team suited to your skillset and interests. You will be working with the latest versions of Java (ideally up to version 21), directly with traders and quants to build high performance pricing and analytics tools from scratch. This is a greenfield ...

# Sr. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700/monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver scalable and efficient solutions, troubleshoot complex … capabilities, and staying updated with emerging technologies are essential for driving innovation and ensuring seamless application performance.### Key Responsibilities* Design, develop, and implement complex Java-based software solutions effectively.* Collaborate with team members to define project requirements accurately.* Optimize application performance for scalability, security, and efficiency consistently.* Troubleshoot ...

Role Java Developer Employment Contract - Inside IR35 Location London,UK - hybrid Skills Strong expertise in Core Java (collections, concurrency, NIO) Experience with Spring Boot, JPA, Hibernate Solid understanding of integration patterns (Apache Camel) Hands-on experience with IBM MQ (configuration, troubleshooting, performance tuning) Strong experience building microservices ...

Senior Java Developer - BSS/OSS - HYBRID We're looking for an experienced Senior Developer to join a Software Engineering team delivering enterprise-scale solutions. This is a hands-on role where you'll design, develop and enhance high-performance applications while collaborating with architects, project managers … Produce technical documentation and promote development best practices. Mentor junior developers and provide technical guidance. Skills & Experience Essential Extensive experience developing enterprise applications using Java . Strong knowledge of Spring Boot and J2EE . Experience building RESTful APIs , Microservices , and working with Kubernetes or OpenShift . Strong SQL skills ...

Description: Job Title: Senior Java Developer Corporate Title: Up to Vice President Location: Bromley Company Overview : At the company, we are guided by a common purpose to help make financial lives better through the power of every connection. We do this by driving Responsible Growth and delivering … involved in realizing story work. Be a strong technologist who is inquisitive and has a desire to learn. What we’re looking for: Good Java development experience. Good knowledge of: Core Java, JEE. Spring Framework – particularly SpringMVC, SpringBoot, SpringBatch. REST. Unix scripting (BASH). Junit. Mocking (JMock/ ...

## Lead Java Developer (VP)Applyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26966780**Discover your future at Citi**Working at Citi is far more than just a job. A career with us means joining a team of more than … experience in the Financial Service industry* Solid understanding on financial products like Fixed Income securities and expertise on Security Financing Transactions.* Experience as senior developer and tech expert in an Applications Development team with good understanding of major programming languages/frameworks like Java/Spring stack ...

Manila, and Montreal, we have a proven track record of delivering powerful, elegant, and intuitive trading technology solutions. We are now looking for a Java Developer to provide services on an exciting project! The service provision will require: Solid JVM skills with strong design patterns. Ability to solve … complex technical challenges, especially in cloud-based environments and by using event driven architecture patterns. Experience of the Fintech industry YOU HAVE: Experience in Java, Spring, Cucumber, JUnit, GitHub, Fix Protocol Significant professional server-side software development experience General familiarity with data structures such as sets, hashes, caches ...

looking for an enthusiastic and motivated Java Developer Intern to join our development team. This role offers a unique opportunity to gain hands‐on experience in software development, work on real‐world projects, and enhance your Java programming skills in a professional environment. Qualification: Experience: Job Responsibilities … Proficiency in Java programming with a good understanding of object-oriented programming (OOP). Familiarity with Java frameworks such as Spring Boot, Hibernate, or Struts (preferred but not mandatory). Basic knowledge of relational databases (e.g., MySQL, PostgreSQL) and SQL queries. Understanding of RESTful APIs and web services. ...

chance to do it on a global scale and play a real role in shaping our exciting journey. The role As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services. This is a backend … fullstack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services, APIs and event-driven workflows. You will also contribute to modern web interfaces using technologies such as React and TypeScript. You will work ...