Top Java Developer Jobs in Manchester

Design, build, and operate scalable backend systems using Kotlin, Java, and AWS. Contribute to architecture and technical direction, deliver reliable distributed services, own production code and quality, collaborate cross-functionally, mentor junior engineers, and make pragmatic trade-offs across the software development lifecycle.

Develop and deliver high-performance online sportsbook APIs using Java, Spring Boot, AWS, GraphQL, Kafka, Docker, and Kubernetes. Responsibilities include building product features, writing well-tested code with TDD, designing customer-focused solutions, collaborating through agile practices and pair programming, reviewing code, supporting continuous delivery, and improving team tools and processes.

Hands-on senior fullstack developer building backend-led JVM services (Kotlin/modern Java) and responsive React/TypeScript frontends. Design APIs, event-driven workflows, tests, CI/CD pipelines, observability, and contribute across discovery, deployment, production support, and technical decisions while validating AI-assisted tools where helpful.

Build and maintain scalable backend systems using Java, Node.js, Spring, AWS, microservices, and REST APIs. Lead architecture and technical design, promote secure and reliable engineering practices, drive automated testing and CI/CD, mentor engineers, collaborate with clients and cross-functional teams, and evaluate AI and emerging technologies to improve software delivery.

Build and enhance Engine by Starling’s cloud-native banking platform and internal tooling. Develop configurable features and products, contribute to microservice-based backend systems, own projects, collaborate across teams, and help lead projects or functional domains. The role emphasizes Java development, clean code, automated testing, continuous deployment, knowledge sharing, and solving complex technical problems in a collaborative engineering environment.

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.

Develop core infrastructure and horizontally scalable APIs for Elasticsearch. Resolve complex performance and concurrency issues, improve cloud operations and observability, automate developer workflows, and support operational investigations. Lead cross-team projects, collaborate with open-source communities, and own technical designs and implementations from inception through delivery. Apply strong Java expertise, CI/CD practices, AI-assisted development, and distributed-team communication.

Design, develop, and deploy scalable web applications, cloud services, and microservices for Roku’s enterprise business systems. Lead architecture discussions, own projects, implement Infrastructure as Code, and ensure security, compliance, testing, and audit requirements. Collaborate cross-functionally, contribute to Agile development, improve engineering tools and cloud services, and deliver reliable software within tight timelines.

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 Software Engineer responsible for designing scalable Java and Spring backend systems, developing secure REST APIs, and contributing to Vue/TypeScript applications. The role includes architectural leadership, technical decision-making, automated testing, CI/CD, cloud development, mentoring engineers, client collaboration, and delivery across multiple initiatives. The engineer will also evaluate emerging technologies, promote automation, and help adopt responsible AI practices to improve engineering effectiveness.

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.

Design, build, support, and architect scalable, highly available distributed applications across web, mobile, trading, content, and internal platforms. The role contributes to solution design, cloud delivery, CI/CD, testing, security, risk management, technical innovation, knowledge transfer, and full lifecycle change delivery using Java, AWS, microservices, event-driven architecture, and containers.

Design and maintain scalable Java backend systems, REST APIs, microservices, and distributed architectures. Lead technical and architectural decisions, promote testing and automation, mentor engineers, collaborate with clients and cross-functional teams, and evaluate emerging technologies including AI to improve engineering delivery.

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

Design, develop, maintain, and enhance SecureFlag’s backend Java platform using microservices. Build automated tests and CI pipelines, troubleshoot performance and production issues, implement new functionality, and collaborate closely with the engineering team. The role requires independently improving scalable Java applications, diagnosing Hibernate bottlenecks, and supporting secure coding education technology in a remote, fast-paced environment.

Design, build, test, and maintain Java 17+ microservices for a banking modernization program. Develop REST APIs and messaging integrations, containerize and deploy services through CI/CD, integrate relational and NoSQL databases, and address performance, resilience, security, and observability. Participate in Agile delivery, solution design, code reviews, testing, and production releases while collaborating with architects, analysts, testers, and product owners.

The Staff Software Engineer will design and manage end-to-end data pipelines, ensuring data quality and governance while collaborating across Java and Python systems, including event schema design and AI tooling.

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

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

Administer, monitor, and support Java applications and Genesys Cloud. Provide production troubleshooting, minor bug fixes and enhancements, and act as primary POC for Java apps. Develop/support microservices using Java and Spring Boot, perform analysis of system behavior, and apply problem-solving and diagnostics to maintain service quality.

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.