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Junior Java Software Engineer

United Kingdom, London · Job Posted January 25, 2026
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Job Description

An established, fast-growing technology firm operating in a highly data-driven, regulated environment is looking to hire a Junior Java Engineer to join a small, high-calibre engineering team. This is a genuine opportunity for someone early in their career to work on real production systems, gain exposure to modern backend engineering practices, and learn from experienced engineers in a collaborative, low-ego environment.

Job Responsibility

  • Developing and maintaining Java-based backend services
  • Working with modern frameworks and APIs
  • Writing clean, testable, well-documented code
  • Collaborating closely with senior engineers to learn best practices
  • Supporting the evolution of scalable, reliable systems

Requirements

  • Commercial experience in Java
  • Understanding of object-oriented design and core backend principles
  • Some exposure to APIs, databases, or distributed systems
  • Curiosity, humility, and a genuine desire to learn
  • Strong communication skills and a team-first mindset

Nice to have

  • Experience with Spring / Spring Boot
  • Exposure to cloud environments or containerisation
  • Interest in financial systems, data platforms, or high-reliability software

What we offer

  • Proper mentorship and clear technical progression
  • Exposure to real-world, business-critical systems
  • Small team where your work actually matters
  • Hybrid working model with a grown-up approach to flexibility
  • Strong engineering culture focused on quality over ego

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