1 to 25 of 102 Permanent Java Developer Jobs in London

Risk Lead Java Developer + AI (VP) Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale … opportunity to build the future of finance with Citi Tech. What We do/The Team This isn’t just another Java developer role. As a Lead Java Developer – Vice President within Citi’s FX Risk technology team, you’ll be at the intersection of high ...

Java Developer/Backend Software Engineer (Kafka API) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What … your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Java Developer you will design, develop and deliver a range of transformational projects for clients, mainly within the financial services sector and with a focus ...

Title: Senior Java Developer - Rates Intraday Risk Technology Job Code: 14911 Country: GB City: London Skill Category: IT\Technology Job Title: Senior Java Developer – Rates Intraday Risk Technology Corporate Title : Associate Department :Information Technology Location: London (Hybrid) Company overview Nomura is a financial services group with … platform from design through to implementation and rollout. Skills, experience, qualifications and knowledge required Mandatory: Bachelor’s degree in computer science or equivalent Experienced Java developer with good knowledge of Java frameworks (Spring) and an understanding of the stages of the software development lifecycle, version control, unit ...

Java Developer with Liferay - London We are looking to recruit a Java Developer with at least 2 to 5 years solid development expertise using Java Enterprise J2EE with Liferay. You will have experience of Designing & Developing Java Enterprise applications – including around 3 years solely … Java Enterprise Portals – like Liferay & WebSphere Portal. You should have experience of working within a team have the ability to lead teams of varying sizes & successfully delivered projects on/before deadline without losing focus on Quality. Experienced in interacting and communicating effectively with Clients and other team members. ...

Java Developer ( SC Eligible/SC Cleared ) London, United Kingdom | Posted on 06/10/2026 Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million … user-centred design and agile delivery, and more to deliver innovative digital services that matter. Role Overview We are looking for a talented Java Developer to join our team and contribute to the design, development, and maintenance of high-performance applications. The ideal candidate has a solid understanding ...

Role: Principal/Senior Java Developer – Elite FinTech Rate: Up to £750 per day Location: London Working Pattern: Hybrid Contract: Contract The Role They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering team, working alongside some … work on high-scale, business-critical technology at the intersection of financial services and next-generation digital assets. Requirements Strong commercial experience with Java Extensive experience developing server-side Java applications Strong software engineering fundamentals Experience working on complex, high-scale systems Strong understanding of application architecture ...

Senior Java Developer (AWS, Microservices) Travel - Sussex Daily rate: £550 - £700 (inside IR35) Duration: 3 - 6 months Hybrid: 1 - 2 days Start: ASAP My new client is looking for a Senior Java Developer (AWS, Microservices) to join the team on a contract basis. You will play … role in designing, developing, and maintaining secure, scalable, and cloud-native Java microservices, primarily hosted on AWS, integrating with both internal and third‐party systems. Collaborating closely with other technical leads, platform engineers, QA, and product teams, you will follow best practices in software design, observability, security, and DevOps ...

Role Role : Principal/Senior Java Developer – Elite FinTech Rate: Up to£750 per day Location :London Working Pattern :Hybrid Contract :Contract They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering environment, working alongside some of the industry … strongest developers, architects and technical leaders. Responsibilities Design and develop high-performance server-side Java applications Work across both greenfield and complex brownfield environments Take ownership of significant technical challenges and drive solutions through to completion Collaborate with highly experienced engineers, architects and product specialists Translate complex business requirements ...

## 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 ...

innovative and high-quality technology solutions while supporting the continued growth and development of our professional workforce. 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 back office … system platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed microservices architecture. As a 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 ...

Java Developer - Back Office Change City of London London (Hybrid - 3 days in office) Contract - 12 months Up to £700/day (Inside IR35) A well-established investment bank in the City is looking for a Java Developer to join its Back Office Change function, focused ...

role We are looking for a Senior Java Developer to help design and deliver a platform built around Java microservices. You will take ownership of backend services, contribute to architecture decisions and work closely with product, QA and DevOps colleagues to turn business requirements into reliable software. … independently. The aim is to shorten release cycles, improve resilience and support growing transaction volumes without disrupting existing users. The proposed stack centres on Java 21 and Spring Boot, with REST APIs for synchronous integration and Apache Kafka for asynchronous events. Each service will own its data, using PostgreSQL ...

Front End Developer with Java – Central London Our Client is looking to recruit a Front End Java developer with at least 3 to 5 years solid development experience. Must have the following skills: HTML, XHTML, HTML5 CSS2, CSS3 JavaScript AJAX JSON, JSONP XML, XSLT, XSD jQuery ...

Backend Java Developer – City London We are urgently looking to recruit a Java backend Developers with at least 5 years experience. Must have strong Data structures and Algorithms experience. Also experience of Spring, working with large code base, SQL, Unix etc. You should ideally have a solid ...

Java Developer with SQL Server – Central London Our Client is looking to recruit a seasoned professional with 5 plus years experience in developing with Java as a backend Developer with SQL Server. You will have a good understanding of Data Structures and Algorithms. In addition … Java and SQL Server development skills you should working knowledge of Spring, working with large code base, SQL, Unix etc. In addition you will have solid problem solving and algorithm skills. Excellent communication skills both spoken and written. This is a 6 months assignment based in Central London. ...

Description We are seeking a motivated and enthusiastic Junior Java Developers to join our software development team. As a Junior Java Developer, you will work closely with senior developers and team members to design, develop, and maintain Java-based applications. This is an excellent opportunity … supportive environment. The successful candidate must be eligible and willing to go through SC/DV clearance. Key Responsibilities Develop, test, and maintain Java-based applications according to project requirements. Collaborate with senior developers to design and implement new features. Participate in code reviews and provide constructive feedback. Troubleshoot ...

## Lead Java DeveloperApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 26949717**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 230,000 dedicated … work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology ...

this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time. We are looking for a dedicatedMiddle Java Developer to join our team in London! About the job: This is a rare opportunity to shape how data-driven decision-making works … much about influence and expertise as it is about analysis. What You'll get to do: Develop, maintain, and enhance microservice applications using Java 21+ and Spring Boot. Design and implement scalable, resilient, and high-performance solutions. Work with relational and OLAP databases, writing efficient SQL queries in PostgreSQL ...

Scrumconnect Consulting in London is seeking a Java Developer to design, build, and maintain high-performance Java applications. You will implement RESTful APIs, ensure code quality, and collaborate with cross-functional teams in an Agile setting. The role requires SC clearance or eligibility, strong Java experience ...

Select how often (in days) to receive an alert: Job title: Senior DevOps Developer – Java, Oracle Salary: £75-81k Grade: Band 3 Contract type: TfL Reference: 5511 External - All offers of employment are subject to satisfactory right‐to‐work checks. Candidates must be able to demonstrate their ...

Backend Java Developer – Data Fabric/Platform Engineering Location: London (Hybrid) Employment: Permanent Salary: £70,000 – £90,000 base (dependent on experience) If your idea of backend engineering is more than CRUD APIs and microservices boilerplate — this role is for you. We’re building the core backend services … critical path of data access . This is deep backend + data infrastructure work . 🚀 What You’ll Do Build core backend services in Java (17/21) for access control and query manipulation Implement deterministic policy/rule engines for data governance Work on SQL parsing, planning, validation ...

Morgan Hunt UK Limited is recruiting a Senior Full Stack Java Developer for a 6-month contract (likely extension) with a UK remote arrangement. You will join a government organisation, working in an Agile, cross-functional delivery team to build cloud-native applications using Java 21, Spring ...

Java Developer/Backend Software Engineer (Kafka API) London/WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What ...

Salt seeks a Senior Java Developer to design, develop, and maintain secure, scalable microservices on AWS. You’ll collaborate with platform engineers, QA, and product teams, following DevOps and security best practices. Hybrid role with 1–2 days on-site, starting ASAP for a 3–6 month contract. … role requires 5+ years of backend experience, strong Java and AWS skills, and familiarity with RESTful APIs, CI/CD pipelines, and security standards. Travel involved. #J-18808-Ljbffr ...

Talan is looking for a talented Java Developer with React experience to join our team delivering cutting‐edge Front Office solutions within Global Markets environments. You will play a key role in designing and enhancing regulatory, alerting, and sales enablement platforms , directly supporting front‐office users and business … Provide 3rd line support and assist in troubleshooting production issues Participate in code reviews and continuous improvement initiatives Skills & Experience (Required) Strong experience in Java (server‐side development) Experience building web‐based applications and REST APIs Good understanding of application performance and optimisation Excellent communication skills, both written ...