Top Java Developer Jobs in London

Develop and optimize backend systems for a trading platform, ensuring scalability, security, and high performance while collaborating with cross-functional teams.

The Java Software Engineer will develop robust and scalable code for customer services using Java, AWS, and Postgres, while advocating for clean coding and best practices.

The role focuses on developing trading applications, enhancing GUIs, and collaborating with trading and quant teams for pricing and execution of algorithms.

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.

As a Senior Java Developer, you'll architect a multi-petabyte scale estate and tackle complex distributed systems processing billions of datapoints daily.

The Senior Java Backend Engineer will lead backend development for a migration project in a complex AWS environment, focusing on automating the actuarial lifecycle in Reinsurance and ensuring alignment with architectural standards.

As a Senior Reliability Engineer, you will enhance system reliability, optimize performance, and implement monitoring for IG's trading platform, collaborating with development teams to improve operational excellence.

As a Junior Software Developer, you'll train in Java and Scala, build real applications, and collaborate globally to solve business challenges.

Develop and maintain scalable microservices and RESTful APIs using Java and Spring Boot on AWS infrastructure. Collaborate with the team to deliver high-quality services.

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.

The Senior Java Engineer will develop and maintain a SaaS platform, ensuring high-quality software delivery, collaborating in Agile teams and innovating with new technologies.

As a Senior Engineer, you'll lead projects, contribute to the platform, build new features, and promote a learning culture focused on engineering excellence.

Develop complex distributed systems using Java, Kafka, and Kubernetes. Mentor team members and contribute to all phases of the product lifecycle.

The Senior Full Stack Engineer will develop innovative applications, manage the entire development cycle, and use XP with remote pairing.

As a Senior Product Engineer at Secfix, you will design, build, and maintain backend systems, collaborating with product teams and mentoring junior engineers, while leveraging AI tools for development.

The Staff Software Engineer will own architecture for Java ecosystem infrastructure and build systems, ensuring secure, reproducible build workflows while mentoring peers and enhancing developer tools.

The role involves improving Elasticsearch's concurrent indexing, maintaining cluster coordination, addressing performance issues, and supporting engineers. Requires strong Java and distributed systems knowledge.

As a Full Stack Engineer, you'll develop software solutions using Java, Node.js, and React, ensuring maintainability and security, while mentoring other engineers.

The Senior Software Engineer will develop high-quality solutions for a SaaS security product, mentor junior members, and contribute to technical decisions while using Java and React.