26 to 50 of 227 Java Engineer Jobs in London

Salt Digital Recruitment is seeking a Senior Java Engineer with strong Core Java and Azure experience to join a banking client's team in London. The role involves freelance work with a daily rate of €500 - €700, primarily focused on server-side development within an Agile team. ...

Senior Java Engineer (Equinox) – Equity Derivatives Tech – 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 … team is responsible for development, maintenance and support of a data platform for the CIS business. Role overview The role of a Senior Software Engineer for Equinox requires a combination of strong technical and leadership skills. You will work together with business stakeholders from Trading and Benchmark Administration Team ...

Java Full Stack Engineer - Senior Consultant Salary: £60,000 - £70,000 plus benefits, perks, and healthcare options! Job type: Permanent | Hybrid (1-2 days per week) | Occasional travel to client sites Security Clearance: Must be SC eligible Base locations: London, Manchester or Glasgow Overview We're looking … Java Full Stack Engineer with strong backend and frontend development experience to join a team delivering innovative digital solutions for enterprise clients. You'll work on digital transformation programmes, designing and delivering modern cloud-native applications that solve real business challenges. Working alongside architects, engineers and stakeholders ...

Burns Sheehan is seeking a Senior Java Engineer to join a leading B2B SaaS technology business in London. You will be instrumental in designing and building scalable products that deliver business value. The role invites a proactive engineer with a strong Java background, especially in Spring ...

Senior Java Engineer – AI Enablement This is a hands-on engineering role focused on delivery. You'll ship modernised services in fast cycles while showing other engineers how AI transforms productivity and code quality. So, who are we? IG has been at the centre of retail trading … when to use AI vs when human judgement is critical What you’ll need for this role Backend Engineering 8+ years software engineering with Java backend expertise Experience modernising production systems at scale Strong API design and microservices architecture knowledge Understanding of strangler fig patterns, service decomposition, and legacy ...

Senior Java & Kotlin Backend Engineer Location: London (Hybrid - Wednesday office attendance required) Contract: Initial 2 months IR35: Outside IR35 Start Date: ASAP The Role We're working with a leading technology organisation seeking an experienced Senior Java & Kotlin Backend Engineer to join their engineering team … develop and deliver high-quality backend solutions that are secure, reliable and built for scale. Key Responsibilities Design, develop and maintain backend services using Java and Kotlin. Build and enhance RESTful APIs within a microservices architecture. Develop secure, scalable and high-performance applications. Collaborate with Product Managers, Engineers ...

Associates is seeking a Senior/Lead Software Engineer (Java) to drive design, development and support of scalable, cloud-native backend applications for a major retailer. You will lead in an Agile, DevOps setting to build high-performance microservices, APIs and event-driven solutions powering a modern fulfilment … platform at scale. Required are extensive Java and Spring Boot expertise, a track record of delivering distributed microservices, Kafka-driven event streams and Azure deployments. #J-18808-Ljbffr ...

GlobalLogic is seeking a Senior Java Engineer to design, develop and maintain high-performance, scalable applications within a distributed microservices ecosystem. You will work across Java/JEE, Spring, REST/gRPC APIs, and cloud platforms (AWS/Azure/GCP), mentor engineers, participate in code reviews ...

Solirius Ltd. is seeking a Senior Java Engineer to join our engineering team in the UK. You will design, develop and maintain scalable Java applications with a focus on cloud-native microservices and modern software practices. AI-enabled capabilities are highly desirable as we explore advanced solutions. ...

Salt Digital Recruitment is seeking a Senior Java Engineer to join a hybrid team in Greater London. The role demands expertise in Java and AWS, with a daily rate of £500 to £700 depending on experience. The ideal candidate will contribute to cloud-native architecture ...

Salt Digital Recruitment is seeking a Senior Java Engineer for a contract role based in London/Hybrid. You will work as part of an Agile team to migrate a legacy application to a new event-based architecture, handling server-side deployment effectively. The ideal candidate has strong … core Java expertise and experience with SpringBoot, Docker, and Kubernetes. This position requires strong communication skills and the ability to motivate and mentor junior staff. The daily rate is €600 - €700, with a duration of 12 months. #J-18808-Ljbffr ...

Version 1 is seeking an experienced Senior Java Engineer to join our UK Digital Data & Cloud Practice, supporting a high-profile trading client in the financial services domain. You will contribute to a Java-based team working with Kafka, Kubernetes/OpenShift, caching, REST APIs, and large ...

United States Digital Space LLC is seeking a talented Senior Lead Java Engineer to join the SwapClear Interfaces team within the SwapClear Technology function. You will design, build, and maintain Java-based applications essential to SwapClear Clearing operations. In a Scrum/Agile environment, you will lead ...

Citigroup Inc. is looking for a Senior Java Engineer in Greater London to drive innovation in the Equinox team within Equity Derivatives Tech. This role involves architecting solutions, collaborating with stakeholders, and mentoring junior engineers. You will work with technologies such as Java, REST APIs ...

raised capital from some of the world’s best investors: Sequoia Capital, Founders Fund, Brevan Howard Digital, Y Combinator, and Kaszek Ventures. Lead Software Engineer(Java) Location London Employment Type Full time Location Type Hybrid Department About ARQ ARQ is one of the fastest-growing fintechs … chance to grow fast with a world-class team, ARQ is the place to do it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You’ll collaborate with a talented ...

leading enterprise SaaS provider in London is seeking a Senior Java Engineer to enhance their core platform team. This permanent, full-time role offers a hybrid work schedule and responsibilities include participating in all product lifecycle phases and mentoring team members. The ideal candidate has 7+ years … backend experience, a deep knowledge of core Java, and a focus on delivering scalable solutions. #J-18808-Ljbffr ...

London Stock Exchange Group (LSEG) is cultivating a Talent Pool for Senior Java Engineers in London and Nottingham. You will join a community that connects with teams early, gaining insights into our engineering culture and opportunities. As a Java Engineer, you will tackle distributed systems challenges, contribute ...

leading technology company is seeking a Java Engineer to join their Security and Intelligence consulting team based in Greater London. The successful candidate will design, develop, and maintain secure, high-performance backend systems, including microservices and APIs. This role demands strong Java skills and the ability ...

United States Digital Space LLC is looking for a Senior Java Engineer to focus on AI Enablement in the dynamic field of financial services. You will be at the forefront of modernising legacy systems and integrating AI into the development lifecycle. The ideal candidate will have over … years of experience in Java backend development and a strong understanding of AI tools such as Claude Code and GitHub Copilot. This role offers a hybrid work model to balance collaboration and flexibility. #J-18808-Ljbffr ...

Hunter Bond is seeking a Java Engineer in London to join a fintech technology company that is rapidly scaling. You will design and develop systems for high-performance data distribution and work on solving complex challenges in distributed systems. This position offers the chance to work on scalable … backend systems that handle vast volumes of data in real time, focusing on performance, resilience, and innovation. The ideal candidate will have strong Java development skills and a passion for working on technically challenging projects. #J-18808-Ljbffr ...

McGregor Boyall in London is seeking a senior Java engineer to lead the transformation of a strategic Front Office FX Options pricing platform. You will design high-performance services and drive an event-driven architecture. The role is hands-on with no people management, working closely with Traders ...

Java Full Stack Engineer Contract or Perm Birmingham/Leeds/Manchester/London Rates/Salary Open to negotiation depending on experience Current SC Clearance required Requirements Develop Support Java full-stack IAM applications APIs Microservices Secure DevOps-based releases Technical Skills required Java Spring ...

Java Full Stack Engineer Contract or Perm Birmingham/Leeds/Manchester/London Rates/Salary Open to negotiation depending on experience Current SC Clearance required Requirements Develop Support Java full-stack IAM applications APIs Microservices Secure DevOps-based releases Technical Skills required Java Spring ...

Summary: We’re looking for a Platform Engineer/Backend Engineer with extensive experience, strong Java, AWS and Kubernetes skills, and a strong engineering mindset to take a key role on our team. The engineer should have a thorough understanding of the Software Development Life Cycle … productivity, documentation, testing and solution design. A good understanding of the Banking, Financial Services and Insurance (BFSI/BFS) domain is important so the engineer can write accurate, business-aware prompts and validate AI-assisted outputs in context. Key Responsibilities: Good understanding of design concepts, distributed systems and cloud ...

Role As a Senior Software Engineer, you will be responsible for architecting, implementing and deploying software services from end to end. You'll produce clean, scalable, and reusable code to build products which will have a big impact on our customers. You will have the opportunity to work with … architecture running on containerised cloud infrastructure, whilst guiding and mentoring more junior engineers in the team. Our Tech This role will be building with Java and Kotlin, leaning heavily on event-driven architectures to move money reliably at scale. Services will run in containers on EKS, backed by both ...