1 to 25 of 47 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. ...

Java Developer London Salary: £38,000 - £55,000 Were supporting a leading cyber security consultancy who are looking for a Java Developer to join their growing engineering team. The organisation helps governments, businesses, and critical organisations defend against cyber threats, reduce risk, and operate securely … high-performance software solutions that process large-scale data and support advanced security and threat detection capabilities. This is a great opportunity for a Java Developer who enjoys solving complex technical challenges and working with modern technologies in a security-focused environment. What youll be doing: Developing ...

Java Developer/Full Stack Engineer (JavaScript Ruby Angular) London/WFH to £90k Are you Java technologist with full stack development skills? You could be progressing your career in a hands-on, impactful, Full Stack Developer role, working on a 'tech for good' product that … highly complex real-time shift rota application, hosted on AWS and available via the web or mobile device (iOS/Android). As a Java Developer you will play a crucial role in re-architecting and enhancing the scheduling platform to a Java and Angular codebase (from ...

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 ...

Java Developer London Salary: £38,000 - £55,000 Were supporting a leading cyber security consultancy who are looking for a Java Developer to join their growing engineering team. The organisation helps governments, businesses, and critical organisations defend against cyber threats, reduce risk, and operate securely ...

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 Java Developer - Credit Risk Technology, Vice PresidentApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todaytime left to apply: End Date: July 29, 2026 (13 days left to apply)job requisition id: 26968975The Senior Java Developer is a senior level position responsible … Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.**Ideal background*** Core Java experience developing robust, scalable, and maintainable applications applying Object Oriented Design principles.* Experience working in the Capital Markets domain. Good understanding of Derivatives ...

Senior Java Developer Hybrid UK | Permanent Leading financial services firm seeking a Senior Java Developer to build and enhance critical Back Office, Middle Office, Settlements, Clearing and Prime Brokerage platforms. Required Skills Java 11+, Spring Boot, Microservices Multi-threading, performance tuning REST APIs, distributed systems ...

Java/Kafka Developer Location: Fully Remote (UK Based) Rate: £525/day (Umbrella/Inside IR35) - NON-NEGOTIABLE Contract Length: 6 Months (with strong view to extend) Clearance: Active SC Clearance (Mandatory/Essential) The Role: An exceptional contract opportunity has arisen for a Senior Java Developer with deep Apache Kafka experience to join a major Central Government Department. You will work autonomously under general direction, taking responsibility for designing, coding, and implementing complex, high-throughput event-driven microservices. This is a fully remote engagement offering brilliant project longevity, allowing you to drive engineering ...

## 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 ...

Java Quantitative Developer London – Hybrid Java, Low Latency, Algo Trading, Pricing, Hedging, FX/Crypto, DeFi, AWS The company This is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leading institutional digital asset firms … markets. Build pricing logic and hedging frameworks that drive the desk's market making activity. Translate trader and quant ideas into efficient, production-grade Java code. Optimise existing trading systems for speed, reliability and scalability. Integrate new data sources and ensure data integrity for accurate model input. Monitor ...

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 ...

Java/Kafka Developer Location: Fully Remote (UK Based) Rate: £525/day (Umbrella/Inside IR35) - NON-NEGOTIABLE Contract Length: 6 Months (with strong view to extend) Clearance: Active SC Clearance (Mandatory/Essential) The Role: An exceptional contract opportunity has arisen for a Senior Java Developer with deep Apache Kafka experience to join a major Central Government Department click apply for full job details ...

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 ...

Basic information LocationLondonBusiness LineTechnology & TransformationJob TypeContractDate published02-Jul-2026Req #23986 Job description Job Title: Java Developer (FX Trading) - contract Location: London Hybrid. Travel to the London office on 2-3 days a week Duration: 6 months (with potential to extend) Contract Start Date: ASAP *note client onboarding takes … projects within the firm that suit your experience should you wish to continue with the company. The Role We are looking for an experienced Java Developers to work in the Technology and Transformation Team at the company. You will support the FX trading platforms with one of our global ...

Global technology & software product company operating in the observability and monitoring space, is looking for a Senior Java Software Engineer to join their Platform Team in London . You'll help build the distributed services that sit at the core of their product, ingesting and transforming data at scale … week in the office, with flexibility considered. What you'll be doing Design and build distributed services from the ground up, working with core Java rather than solely relying on heavy framework usage. Develop event-driven systems using Kafka and event-streaming frameworks at scale Orchestrate deployments on Kubernetes ...

Hopeghospital in Greater London is seeking a Senior Java Developer to design and maintain high-quality Java applications. The role involves collaborating with cross-functional teams to deliver scalable solutions, optimizing performance, and mentoring junior developers. Candidates must have strong proficiency in Java, Spring, Hibernate ...

Java Developer/Full Stack Engineer (JavaScript Ruby Angular) London/WFH to £90k Are you Java technologist with full stack development skills? You could be progressing your career in a hands-on, impactful, Full Stack Developer role, working on a 'tech for good' product that ...

Gravitas Group is seeking a Senior Java Developer to build and enhance back office, middle office, settlements, and prime brokerage platforms in a hybrid UK environment. You will work on scalable microservices, REST APIs, and data-intensive services within a financial services framework. The role requires expertise … Java 11+, Spring Boot, TDD/BDD, and distributed systems, with strong stakeholder engagement skills. Hybrid work is available with onsite presence three days per week. #J-18808-Ljbffr ...

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 you will need: Demonstrable java ...

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 … cause analysis on production issues, drive long‐term stability improvements, and strengthen monitoring and observability across the platform. Recommended Experience Strong experience in Core Java, J2EE, Spring Framework Exposure to Python scripting and data analysis Experience in fast moving Capital Markets Front Office technology environment with experience in Fixed ...

html Java Python Developer – Equity derivs Hedge Fund £200,000 Job Description Quant Capital is urgently looking for a Java Python Developer to join our high profile client in their main development team. Our client is one of the largest Quant Investment managers globally, with around... … technology and the possibility of making serious money doing something you are passionate about. My client is based in London. Skills Needed Java, C++, Erlang, F#, Scala , Haskell, Django, Python, Twisted, NoSQL, Data Science... ``` #J-18808-Ljbffr ...