Top Java Developer Jobs in London

As a senior developer, you will design and implement microservices, collaborate with teams, optimize software performance, and mentor junior developers.

Lead Java Developer responsible for delivering Real-Time and On-Demand Risk enhancements, managing the full development lifecycle, collaborating with global teams, and driving operational improvements.

The Java Developer will create new features for policy administration and claims handling, while also integrating new systems and documenting work according to standards.

Seeking a skilled Java Developer with SC Clearance to design and maintain back-end systems, utilizing AWS and deploying applications using Kubernetes. Collaborate on CI/CD pipelines and develop basic front-end applications with React.

Lead a Scrum team to design, develop, test and support scalable Java-based applications critical to SwapClear clearing operations. Drive high-quality code (Java 17+, Spring), contribute to frontend and cloud/container deployments, implement test automation, participate in production support (including rota), and document system designs while collaborating across business and CI teams.

As a Principal Backend Engineer, you will build scalable backend services with Java, design APIs, implement microservices, and work with AWS cloud technologies.

Lead the development of scalable cloud-native solutions using AWS and Java. Provide technical leadership, mentoring, and manage high-complexity projects in agile environments.

As a Java Developer, you'll build the crypto Lending systems for our Prime services platform, collaborating with various business facets.

Design and develop high-performance Java applications for real-time trading and risk systems, optimizing performance and providing production support.

Lead a team on FX real-time risk systems, manage deliverables, and act as the technical contact for trading and risk management.

As a Principal Java Engineer, you'll design and develop scalable backend services for live football events, working in an agile team and mentoring others.

The role involves training large language models to improve code quality by reviewing and refactoring AI-generated code, providing feedback to enhance the learning process.

The Backend Developer will design and deliver backend services using Kotlin/Java, contribute to architectural decisions, ensure code quality and technical documentation, and collaborate with stakeholders in a healthcare SaaS environment.

As a Senior Software Engineer, you'll lead backend development, improve SDLC processes, and mentor engineers, primarily using Java and Kotlin.

Join as a Senior Java Engineer to develop scalable Java applications, utilizing frameworks like Spring and CI/CD practices. Engage in a talent community before roles open, emphasizing Java proficiency and distributed systems knowledge.

As a Front-End Developer, you will design and develop web interfaces, collaborate with teams, mentor juniors, and ensure adherence to coding standards and best practices.

Responsible for training large-language models by reviewing, ranking, and improving AI-generated code. Requires strong software engineering skills.

The role involves rapid application development for trading software, collaborating with traders, providing support, and managing data.

As a Senior Java Engineer, you will develop and optimize backend services for data-intensive applications, focusing on high reliability and performance in live sports environments. You will collaborate on architectural decisions, manage data pipelines, and work within an agile team deploying applications on AWS.

The Senior Java Engineer will design complex systems, optimize performance, maintain code quality, and ensure application reliability. Responsibilities include translating requirements into applications and troubleshooting issues.

As a Backend Software Engineer at Engine by Starling, you will develop and deliver features for our banking platform, contribute to our internal tooling, and collaborate across teams, embracing a culture of learning and ownership.

Join Visa as a Software Engineer in Test, focusing on API testing, CI/CD integration, cloud solutions, and implementing QA best practices within an Agile team.

As a Senior Software Engineer, you'll develop RESTful Java APIs, collaborate with cross-functional teams, and enhance software delivery processes while mentoring peers.

Develop and deliver components for the Core Prime Brokerage platform using Java and Kotlin, focusing on agile development and automated testing. Collaborate with cross-functional teams to refine requirements, participate in design discussions, and support production issues.

The Senior Java Developer will design and build a client lifecycle management solution, focusing on Java/Spring Boot, AWS, and regulatory compliance while collaborating with various teams.