Java Engineer

6h6 hours ago

Version 1

London, GB · Full-time · £55,000 – £75,000

About this role

Version 1 is a 30-year technology and transformation partner trusted by global brands, with deep expertise across Microsoft, AWS, Oracle, and other leading platforms. The company is seeking a Java Engineer to join its expanding UK Digital Data & Cloud Practice, delivering solutions for a high-profile trading client in financial services.

You will contribute hands-on to a Java-based development team supporting a high-volume message processing environment. The work centres on backend development with Kafka, Kubernetes/OpenShift, caching solutions, REST APIs, and high-throughput distributed systems.

The team operates in a client ecosystem that relies on microservices architecture, Spring Boot, SQL databases, and messaging platforms such as Kafka and MQ. You will apply performance, security, and resilience practices while supporting CI/CD pipelines and production stability.

The Digital Practice offers the opportunity to develop technical skills in scalable distributed systems while working with an award-winning employer recognised as a Great Place to Work and Best Workplace for Wellbeing.

Requirements

Some exposure to trading or financial platforms, with awareness of non-functional requirements such as latency, resiliency, throughput, and failover handling.
Experience developing cloud-native applications with a microservices architecture running on Docker/OpenShift/Kubernetes.
Solid application development skills in Java, SQL (SQL Server, Oracle, etc.) and messaging platforms such as Kafka and MQ.
Experience with the Spring framework and Spring Boot technologies.
Experience in Java REST API development and application security best practices (OAuth, JWT, etc.).
Experience with build and source control tools: Gradle, Maven, Git/Bitbucket.
Familiarity with caching services such as Redis.
Awareness of AI coding assistants such as GitHub Copilot, Cursor, or Claude, with the ability to validate, refactor, and integrate AI-generated code.

Responsibilities

Design, develop, and maintain backend components in Java, with a focus on performance and resilience.
Contribute hands-on to features across messaging, caching, and distributed processing layers.
Troubleshoot and resolve issues related to sequencing, recovery, message failures, and large-volume processing.
Support releases, deployments, and production stability activities.
Adhere to CI/CD pipelines, code quality standards, and operational readiness requirements.
Apply performance, security, and resilience best practices, particularly around message handling.
Work closely with the Technical Lead and peers to deliver against team objectives.
Contribute to technical discussions, design reviews, and knowledge sharing within the team.