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# Senior Java Engineer

- **Company:** iO Associates
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Microsoft Azure, Cloud Computing, Cloud Engineering, Continuous Integration, Couchbase Servers, DevOps, PostgreSQL, Systems Development Life Cycle, Enterprise Software Applications, Spring-boot, Backend, Event Driven Architecture, Solid Principles, Kubernetes, Apache Kafka, Docker, Microservices
- **Published:** August 3, 2026
- **Apply:** https://www.totaljobs.com/job/senior-java-engineer/io-associates-job107786363

## About the Role

* Extensive commercial experience developing enterprise applications with Java and Spring Boot
 * Proven track record designing and delivering high-throughput, distributed microservices at scale
 * Strong experience building event-driven architectures using Kafka
 * Expertise with PostgreSQL and Couchbase in production environments
 * Strong cloud experience with Azure, alongside Docker, Kubernetes and CI/CD pipelines
 * Experience designing, optimising and supporting mission-critical, cloud-native systems
 * Strong understanding of software design principles, scalable architecture and system performance
 * Experience working in Agile, DevOps environments with ownership of software throughout the full development lifecycle
 * Previous experience mentoring engineers and driving engineering best practices

-Hybrid - 2 days per week onsite

## Description

A large retailer urgently seeks an experienced Senior Software Engineer with extensive Java expertise to take a lead role in the design,development and support of scalable, cloud-native backend applications.

Working within an Agile, DevOps environment, you'll help build high-performance microservices, APIs and event-driven solutions powering a next-generation fulfilment platform used at significant scale. This is an exciting greenfield programme, working alongside engineers, operations and product teams to deliver software that supports critical business operations.


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