Permanent

Senior Full Stack Developer

Posted by SThree • London, England, United Kingdom

📍 London, England 🕒 June 18, 2026

About the Role

At SThree, we’re building a next‑generation candidate and contractor digital experience — and we’re looking for a Senior Full Stack Developer to help bring it to life. You’ll play a key role in designing and delivering a new contractor onboarding and placement management platform, working across Java back‑end services and modern React front‑ends, while championing AI‑first development practices.

What you'll be working on

As part of a small, high‑impact software engineering team, you’ll:

  • Design, develop, test, and support end‑to‑end solutions across Java (11+) back‑end and React (18+), TypeScript, JavaScript, HTML & CSS front‑end layers

  • Shape user experiences by producing wireframes, prototypes, and UI designs

  • Build and maintain UI‑driven automated tests and follow strong TDD practices

  • Collaborate with business and technology st...

  • Ready to Apply?

    Submit your application today and take the next step in your career journey with SThree.

    Apply Now