Senior Java Developer

Senior Java Developer

Location: London - Hybrid (2 days per week on-site)

Day Rate: Market Rate (Inside IR35)

Duration: 6 Months

Role Overview

We are seeking a highly skilled Senior Java Developer to join a key digital transformation initiative for one of the UK's leading retailers. This role plays a pivotal part in designing and delivering innovative, scalable, and resilient solutions that directly enhance customer experience. You will work with modern engineering practices and cutting edge technologies-including microservices, event driven architectures, and cloud platforms-to build high performance systems in a fast paced environment.

Key Responsibilities

• Develop, enhance, and maintain backend services using Java, Spring Boot, and Spring Security.
• Design and implement microservices and event driven architectures using Confluent Kafka.
• Build, maintain, and optimize CI/CD pipelines using GitHub Actions, Jenkins, and shell scripting.
• Write and execute unit, integration, and performance tests using Mockito, Gatling, and JMeter.
• Monitor system performance, troubleshoot issues, and ensure reliability using New Relic and Grafana.
• Collaborate with cross functional teams to deliver high quality solutions aligned with business objectives.
• Contribute to best practices in coding, security, and system design.

Essential Skills and Experience

• Strong proficiency in Java and Spring Boot.
• Hands on experience with microservices architectures and Kafka.
• Solid understanding of CI/CD processes and tools such as Jenkins and GitHub Actions.
• Experience working with PostgreSQL and MongoDB databases.
• Strong communication skills and ability to work effectively in a fast paced, agile environment.

Desirable Skills and Experience

• Exposure to AWS cloud services or AI technologies.
• Knowledge of performance testing tools such as Gatling and JMeter.
• Familiarity with monitoring platforms including New Relic and Grafana.
• Experience writing shell scripts for automation.
• Understanding of secure coding practices and Spring Security.