26 to 41 of 41 Senior Java Developer Jobs in London

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 … backend-led 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 ...

Cerillion in London is seeking a Senior Developer to join our Software Engineering team. You will design, develop, and deliver enhancements to Cerillion’s core BSS/OSS products, mentor juniors, and collaborate with architects and cross-functional teams to ensure robust, scalable systems. The role focuses … Java-based technologies, Spring Boot, RESTful APIs, microservices, and containerisation with Kubernetes/OpenShift, with responsibilities across Agile delivery and code quality. #J-18808-Ljbffr ...

Citi in London is seeking a Lead Java Developer to drive the development of real-time and on-demand risk systems within our global trading and risk framework. You will own the full development lifecycle, from architecture to production support, and collaborate with London-based traders, risk teams ...

Barcelona, Manila and Montreal, we have a proven track record delivering powerful, elegant and intuitive trading technology solutions. We are now looking for a Java developer to join our London team on a new exciting project! YOU ARE: A JVM lover who really enjoys working with the latest … each other Experienced within the Fintech industry YOU HAVE: Significant, professional server-side software development experience Solid experience programming using Core Java. Exposure to Java 17+ is a plus General familiarity with data structures such as sets, hashes, caches etc Experience developing Front Office financial systems, E-Trading ...

creates new opportunities for driven and skilled individuals to join one of the fastest-growing consultancies globally. Job Description We are seeking an experienced Senior Full Stack Java Developer to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly and there will …/DRY principals Hands-on developing/coding role using the following technologies: Frontend (JavaScript/TypeScript or Angular or React or Node) Backend (Java, SpringBoot, Hibernate, Kotlin) Experience in estimation and sizing Integration experience API Design experience Cloud experience Appetite to work with emerging AI technologies SC Eligible ...

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 ...

Position: Senior Software Engineer( Airline/Aviation Domain) Location: London, UK (Hybrid-2/3 days from office) Permanent position Skills: Java, microservices, Azure, Kafka, Azure Event Hub Technical skills Strong programming and development skills (e.g., Java, equivalent technologies used within Client environment). Software design principles ...

Morgan Hunt are partnering with a Government organisation to recruit an experienced Senior Full Stack Java Developer on an initial 6-month contract, with extension potential. The role is remote (UK based) within an Agile, cross-functional delivery team, building cloud-native applications using Java ...

# 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 ...

Fantastic opportunity to join a thriving Investment Bank. This is a senior technical role responsible for leading backend application development initiatives and driving architectural decisions for robust, scalable, and high-performance server-side systems. This role provides hands‐on leadership in building enterprise-grade Java backend solutions, guiding … development teams, and influencing technical strategy and best practices. Responsibilities Lead design, development, and implementation of complex backend applications and microservices using Java and Spring Boot. Own end-to-end delivery of backend components, from architectural design and coding to deployment and operational support. Drive architectural decisions for backend ...

Position: Senior Software Engineer( Airline/Aviation Domain) Location: London, UK (Hybrid-2/3 days from office) Permanent position Skills: Java, microservices, Azure, Kafka, Azure Event Hub Technical skills Strong programming and development skills (e.g., Java, equivalent technologies used within Client environment) click apply for full ...

## Senior C++/Java DeveloperApplylocations: London, United Kingdomtime type: Full timeposted on: Posted 3 Days Agojob requisition id: R0119302**ABOUT US:**LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication … careers.**ROLE SUMMARY:**This is an individual contributor role responsible for the design, development, and delivery of high‐quality software solutions using C++ and Java within a defined product, platform, or client solution area. The role emphasizes hands‐on engineering, strong ownership of medium‐to‐large technical components ...

platform services from existing infrastructure to new hardware, ensuring minimal disruption to live trading operations. Must haves - DevOps, CI/CD, Docker, Kubernetes, Java/Python and Automation Your Key Responsibilities Document the current D2C service landscape, identifying all services and their existing host dependencies Collaborate with the infrastructure … migration of D2C services to new infrastructure, including rollback planning, environment validation and post-migration sign-off Your Skills and Experience Core Java Skills - Good understanding of Java fundamentals including object-oriented programming, collections, exception handling and concurrency. Integration, API Development and Databases - Experience building and deploying event ...

have an exciting opportunity for experienced Java developers to join our team! You will have a passion for software development and an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You will be involved in all areas of delivery, with the technical gravitas to mentor … required to work onsite in Paddington, London, for 3 days a week. You must have previous experience using Azure. Expert understanding of Java, knowledge of other JVM languages such as Kotlin is a plus Modern Build Tools including Gradle and Maven Comfortable in designing and Implementing Event Driven/ ...

product capability and looking for talented individuals to help build transformational capital markets products including: Aeron - our flagship high-performance messaging infrastructure. Hydra - our developer framework for accelerating the development and delivery of trading systems. Artio - our market-leading open-source FIX engine. Aeron Sequencer - replicated state machines … about learning new things and keeping up to date Happy to work in a test-driven and Agile development fashion YOU HAVE: Experience in Java server-side software development Experience designing, building, debugging, and operating distributed systems Experience designing and evolving messaging protocols Experience designing and evolving software libraries ...

Summary City of London, England We are looking for a senior, experienced software engineer to assist with the development and maintenance of our in-house corporate network management utilities and applications. The candidate must be comfortable using the Linux command line interface. Previous experience with network devices and protocols … e.g. RADIUS and TACACS+, would be useful. Qualifications Mandatory – All: Java, Linux/UNIX shell scripting Mandatory – At least one: Perl, Python #J-18808-Ljbffr ...