Java Developer

Company: Square One Resources
Apply for the Java Developer
Location: Essex
Job Description:

Location: Laindon, Essex – 4 days per week in the office

Salary/Rate: Up to £613 per day inside IR35

Start Date: November 2026

Job Type: Initial 7-month contract (likely to extend for 12 months)

Company Introduction

Our client is a highly regulated financial services organisation and operates mission-critical platforms that process large volumes of transactions securely and reliably. Technology plays a central role in delivering exceptional customer experiences while maintaining the highest standards of security, resilience, and operational excellence.

Job Responsibilities/Objectives

  • Designing and building high-scale backend services using Java
  • Developing secure and resilient identity and access management solutions
  • Working on systems supporting high-volume transactional workloads in a regulated environment
  • Applying Test Driven Development (TDD) throughout the software development lifecycle

Required Skills/Experience

  • Strong experience in backend software engineering using Java and Spring Boot
  • Pair Programming experience
  • Strong IAM (Identity Access Management) – preferably OAuth & Azure
  • Exposure to cloud platforms such as GCP, AWS, or Azure
  • Experience coaching and mentoring junior software engineers

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Posted: October 27th, 2026