Top Java Developer Jobs in Bristol

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.

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.

Build and maintain Engine by Starling’s banking platform and internal tooling. Develop configurable features and products from scratch, contribute to automated testing and continuous deployment, collaborate across small teams, own projects, and share technical knowledge. The role primarily involves backend development in Java within a cloud-native, microservices-based environment using AWS, GCP, Kubernetes, Terraform, TeamCity, and Grafana.

Principal Software Engineer responsible for designing, building, and operating distributed systems powering Serverless Elasticsearch. The role focuses on cluster coordination, concurrent and consistent indexing, scalability, resilience, performance, and operational stability across large-scale deployments. Responsibilities include resolving complex concurrency and performance issues, supporting engineering teams, leading projects across multiple engineers, and owning technical initiatives from design through delivery.

Develop core infrastructure and horizontally scalable APIs for Elasticsearch. Solve complex performance, concurrency, stability, and observability issues; improve developer productivity through automation and AI-enabled workflows; support cloud and serverless operations; and lead cross-team engineering projects from design through delivery.

Develop cloud-based Java microservices for CC Responder using agile Scrum practices. Responsibilities include full software development lifecycle ownership, system integration, testing, documentation, customer support, mentoring junior engineers, code reviews, architectural guidance, and establishing code quality standards.

Designs and maintains high-performance JVM applications for digital-asset trading and settlement. Responsibilities include developing microservices, REST APIs, WebSockets, SQL and NoSQL data schemas, Kafka messaging, Redis caching, and cloud-native AWS solutions. The engineer collaborates with business stakeholders, DevOps, and frontend teams; supports GitLab CI/CD; and implements observability, structured logging, scalability, availability, and data integrity across a regulated financial platform.

Develop and support mission-critical finance systems, including bank ledgers and integrations. Design reliable, maintainable services, collaborate with accountants, treasurers, and internal stakeholders, and contribute throughout the project lifecycle. Engineers will work primarily with Java in a cloud-native environment using PostgreSQL, AWS, GCP, Kubernetes, Terraform, Grafana, and CI/CD tooling. The role emphasizes transaction accuracy, financial process automation, system resilience, and solving complex technical problems.

Build scalable Java backend systems using Spring, REST APIs, microservices, databases, messaging, Docker, and cloud platforms. Lead architecture and technical design, promote engineering excellence, mentor engineers, drive delivery, improve automation, and evaluate emerging technologies and AI capabilities. Collaborate with clients and cross-functional teams to deliver secure, resilient software with measurable business value.

Build and maintain backend services and REST APIs using Java and Spring Boot. Write clean, tested code; work with relational and NoSQL databases; participate in code reviews; collaborate with senior engineers and product teams; and use Git-based CI/CD workflows to deliver features. The role includes mentorship, client collaboration, and occasional travel to client sites or company offices.

Design, build, operate, and evaluate secure backend services in a Java-based, event-driven microservices platform for high-volume, low-latency usage-based pricing. The role requires independent technical judgment, code quality and security assessment, and effective use of AI development tools. Preferred experience includes acquisition-related team integration, complex business logic, high-throughput systems, and documenting shared system context for reliable AI-assisted development.

Develop and support an endpoint security product using Java, Node.js, TypeScript, and React. Investigate enterprise customer issues, debug complex systems, analyze logs, profile performance, and identify root causes. Collaborate with global Support, QA, Product, and Engineering teams, contribute to product roadmap decisions, and develop security solutions within an agile environment.

Develop and maintain Elasticsearch’s Inference API and plugin framework, integrating internal and external AI providers. Responsibilities include API and protocol design, streaming, asynchronous execution, rate limiting, configuration, billing integration, error handling, open-source contribution reviews, incident response, and comprehensive unit, REST, and rolling-upgrade testing. The role requires advanced Java expertise, concurrency and parallelism knowledge, API design skills, cross-functional collaboration, and autonomous work in a distributed 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.

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.

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.

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.

Develop and maintain Java-based web applications using Java 8, J2EE/Tomcat and Spring MVC. Build RESTful services, work with JMS/MQ, Maven and Git. Collaborate in Agile/Scrum teams, perform troubleshooting and root-cause analysis, and communicate technical solutions. Basic database/SQL and front-end skills (JavaScript, jQuery, Angular, Bootstrap) expected. Entry-level/contract role requiring a bachelor’s degree and ~1 year development experience.