25 of 25 Permanent Senior 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 … deployment and 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 ...

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 … 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 ...

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 … 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 - Digital & Public Services A growing digital consultancy delivering complex, high-impact services into the public sector is looking for a Senior Java Developer to join its engineering capability. This is an opportunity to work on meaningful projects, contributing to the development … nature of the work, candidates must either hold current SC Clearance or be eligible to obtain SC Clearance . The Role As a Senior Java Developer, you will play a key role in the design, development, and deployment of modern digital services. You will work on complex ...

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 … 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 ...

global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Accepting applications until: 28 August 2026 Job Description Your Role: Senior Java Developer We're looking for an experienced backend engineer with a passion for technical excellence and improving user experiences. … campaign delivery at scale. This role is based in our Holborn office with hybrid working as part of our Smart Working approach. As a Senior Java Developer at Global, you will: Work across the full lifecycle of our ad-serving products, from discovery and design through ...

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 … 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 ...

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 … 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 ...

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 ...

Senior Java Developer | Electronic Trading | VP/Executive Director Location: London Working Pattern: Hybrid, 3 days per week in the office Salary: Up to £200,000 base + exceptional bonus (Total Compensation up to £350,000) Join one of the largest growth programmes in Electronic Trading Technology … trading platforms from the US into Europe. This is an opportunity to join a business that is actively building rather than maintaining, with multiple senior hires planned over the next 12 months. You'll work alongside experienced engineers developing the next generation of low latency electronic trading systems supporting ...

seeking a highly skilled and motivated Senior Java Engineer to join our innovative development team. You will be instrumental in designing, developing, and maintaining high-performance, scalable applications and services. This role requires deep expertise in modern Java ecosystems, microservice architectures, and distributed systems design patterns. Requirements … 7+ years of professional software development experience, primarily in Java/JEE. Expert proficiency with the Spring Framework, including Spring Boot, Spring Cloud, Spring Security, and Spring Data. Proven experience in designing and building microservices and highly distributed systems. Deep understanding of architectural and scaling patterns: Kafka and scaling ...

Senior Java Analyst Developer/Technical Consultant London, United Kingdom Tech Stack Databases Spring Framework Ember.js NoSQL Spring Boot Docker Kubernetes React JPA JavaScript Cloud Java RabbitMQ Analyst UI HTML5 Software Technologies Software technologies such as Core Java, Spring Boot, Hibernate/ ...

foster them,it’sdeeply embedded within our DNA. Invest in us andwe’llinvest in you!. Job Description We are seeking an experienced Senior Java Engineer to join our UK Digital Data & Cloud Practice. Our Digital Practice is expanding rapidly and you will have the opportunity to achieve … career goals. You will be working for one of our high-profile trading clients within the financial services domain, contributing hands-on to a Java-based development team supporting a high-volume message processing environment. The team is heavily Java-focused, operating within a client ecosystem that relies ...

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 ...

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 ...

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 ...

# 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 ...

## 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 ...

Morgan Hunt is looking for a Senior Full Stack Java Developer to join a government project on a 6-month contract, with a strong likelihood of extension. You will work in an Agile, cross-functional delivery team, building cloud-native applications using Java 21, Spring Boot ...

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 ...

Company Description Version 1 has celebrated over 26 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Version 1 has several strategic technology partners including ...