Software Engineer

We are currently seeking a Senior Software Engineer to join a high-performing engineering team within a large-scale, enterprise environment. This role is ideal for a highly experienced backend engineer with a passion for clean code, modern development practices, and delivering high-quality solutions in an Agile setting.

Dunton / Basildon Essex

(On-site 4 days per week – non-negotiable)

📅 Start: End of April/May 2026

⏳ Duration: 8 months

💼 Competitive day rate - up to £590 a day

Key Responsibilities

  • Design, develop, test, and maintain scalable software applications
  • Contribute across the full software development lifecycle, from architecture through to deployment
  • Lead and participate in development reviews, ensuring code quality and best practices
  • Collaborate closely with cross-functional teams in a highly Agile, pair-programming environment
  • Support and mentor junior engineers while managing multiple complex assignments

Essential Skills & Experience

  • Strong background in Agile Java Development
  • Expertise in Spring Boot and JUnit
  • Extensive hands-on experience with TDD and BDD (candidates must be accustomed to applying this in the majority of their development work)
  • Proven experience with pair programming (comfortable working this way up to 100% of the time)
  • Strong experience designing scalable, resilient, and secure backend architectures
  • Deep knowledge of Git/GitHub and CI/CD pipelines (e.g., Cloud Build)
  • Experience working with Google Cloud Platform (GCP), including infrastructure as code and cloud-native services
  • Strong understanding of architectural standards within large organisations

Preferred Experience

  • Familiarity with tools such as:
  • IntelliJ IDEA (or other JetBrains products)
  • SonarQube (or similar code quality tools)
  • Checkmarx (or similar security testing tools)
  • FOSSA (or open-source compliance tools)
  • Cycode (or software supply chain security platforms)

What We’re Looking For

  • Excellent verbal communication skills and strong team collaboration
  • A proactive, quality-driven mindset with a focus on delivering value
  • Ability to work autonomously while contributing to a team-first culture
  • Comfortable working in a structured, large-scale environment

Job Details

Company
Square One Resources
Location
Basildon, England, United Kingdom
Posted