Top Java Developer Jobs in Manchester

As a Principal Software Engineer, you will design and implement platform capabilities for data processing and AI enablement, mentor other engineers, and guide architectural and operational best practices.

As a Principal Java Engineer II in the ML Core team, you will build and maintain machine learning components for Elasticsearch, collaborate with engineering teams, and ensure scalable and high-quality code. You'll lead projects from design to implementation while supporting the team and community.

Develop, design, and deliver Java-based software solutions using Java 8 and AWS. Apply multithreading and performance optimization skills, collaborate with cross-functional teams, and work in agile environments with client engagement and periodic onsite presence.

As a Senior Java Developer, you will develop high-quality solutions, mentor juniors, and contribute to technical decisions in a collaborative environment.

As a Senior Software Engineer, you will develop and maintain Java APIs, collaborate with project teams, identify roadblocks in delivery, and mentor team members to enhance skills and knowledge.

As a Java Engineer, you will design and implement scalable solutions using Java and AWS, while collaborating with cross-functional teams and supporting team members.

As a Senior Software Engineer, you will design and deploy scalable applications, lead architecture discussions, ensure compliance, and improve engineering processes while collaborating across teams.

As a Senior Software Engineer, you'll develop high-quality software solutions, mentor junior members, apply best practices in design and build, and contribute to technical decisions in a collaborative environment.

The Senior Software Engineer will design, develop, and support applications for embedded Linux and Android, providing technical leadership and mentoring.

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

Evaluate, rank, repair, and refactor AI-generated code to improve correctness, efficiency, and style; provide detailed written feedback for RLHF pipelines; and help maintain the code-evaluation and training workflow remotely.

Develop and maintain scalable Java backend APIs and responsive React/TypeScript front-ends. Implement security (OAuth2/JWT), integrate databases (relational and NoSQL), write automated tests, contribute to CI/CD, containerization (Docker/Kubernetes), and monitor production services while collaborating with product, design, and DevOps teams.

As a Principal Full Stack Engineer, you will design and build core platform capabilities, lead frontend and backend development, mentor engineers, and drive architectural strategy while ensuring system scalability and reliability.

The Senior Java Developer will support an AI department project, developing Java solutions, collaborating with customers, and documenting technical processes in an Agile environment.

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 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 Roku's Experimentation team to design and implement distributed backend capabilities (bias avoidance, segment management, orchestration), improve resilience, performance, and scalability, and collaborate with engineers and data scientists to deliver production-ready experimentation systems at scale.

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

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

As a Software Engineer at Anaplan, you will lead platform capability design, integrate AI/ML solutions, mentor teams, and enhance data architecture.

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 Technical Architect leads teams to develop high-quality software solutions, manages staff performance, and collaborates on technical design while integrating user journeys and non-functional requirements.

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.