Top Java Developer Jobs in Manchester

Senior Java engineer to re-architect backend financial data mapping into scalable, testable ETL pipelines. Build and maintain Java-based microservices and Apache Beam pipelines, optimise cloud infrastructure via IaC and CI/CD, work with large datasets, ensure accuracy and observability, collaborate across product, QA and operations, and mentor peers.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.

Senior backend engineer for Engine by Starling's SaaS banking platform. Build and maintain backend services and internal tooling, design configurable features, ensure automated testing and continuous deployment, collaborate across teams, mentor colleagues, and lead projects or domains to deliver production-ready solutions.

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.

Lead architecture and delivery of enterprise-scale API gateways, edge routing, and high-throughput JVM backend services. Drive GitOps deployments (ArgoCD, Helm), improve observability, rate-limiting, and concurrency controls, integrate LLM-assisted workflows, and mentor global engineering teams.

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.

Design, build and maintain scalable, secure backend systems using Java and the Spring ecosystem. Lead architecture and API design, ensure quality through testing and observability, mentor engineers, drive delivery across initiatives, evaluate emerging technologies and AI capabilities, and collaborate with cross-functional teams to deliver client value.

Lead technical strategy and architecture for backend systems, delivering scalable, secure Java/Spring microservices. Mentor engineers, drive engineering standards, CI/CD, observability, cloud-native deployments, and AI-driven automation. Partner with Product and clients to align technology with business outcomes and lead delivery across multiple programmes.

The role involves optimizing Elasticsearch for high performance in distributed systems, managing clustering coordination, and resolving complex issues.

Support production Java/Spring applications, resolve incidents, perform root cause analysis, manage deployments and monitoring (Kubernetes, CI/CD, Docker), collaborate with DevOps, participate in on-call rotations, and drive operational improvements.

Work on production services and applications, design and deliver features, create public APIs and integrate with major Git providers, follow CI/CD and agile practices, mentor teammates, lead Scrum activities, and drive continuous improvement in team processes.

As a Senior Java Developer at Kainos, you will develop high-quality software solutions, mentor junior team members, and contribute to technical decisions in a collaborative environment.

Lead the Java Full Stack technology strategy, implementing AI-driven development practices, overseeing complex platforms, and driving modernization initiatives in cloud and microservices.

Designing and building scalable backend systems, mentoring junior engineers, collaborating with teams, and ensuring quality and delivery for financial products.

Join our Point of Sale squad as a Software Engineer to design, develop, and maintain systems that enhance customer finance experiences at checkout.

As a Senior Software Engineer, you will design, develop, and maintain software solutions for public transportation, collaborate with teams, and mentor junior engineers.

Design and develop scalable distributed applications, support architecture and solution designs, and ensure smooth transitions of technical solutions within the team.

The Software Engineer will design, build, and support scalable applications, contribute to architectural solutions, and ensure effective technical development within the team.

Design, implement and evolve core components of a Java-based distributed runtime: cluster services, distributed data structures and execution engines. Work on partitioning, replication, coordination and recovery, write reliable low-latency production code, contribute to architecture, reviews and mentoring.

Design, develop, and optimize high-performance Java backend systems. Contribute to architecture, implement core modules, troubleshoot production issues, perform code reviews, and improve scalability, availability, and reliability of distributed financial or blockchain systems.

As a Senior Software Engineer, you'll maintain critical data framework integrations, ensuring performance and reliability while collaborating with the community, affecting real-time analytics and observability systems.

Design and develop scalable applications and services, translating business requirements into technical solutions while ensuring code quality and performance. Collaborate within an Agile team, participate in code reviews, and mentor junior developers.