Senior Full-Stack Engineer — Hybrid Work + AI Tools

Quantum is seeking a Senior Full Stack Engineer to grow our Technology team in Greater London. You will help shape and scale our platform, delivering high-quality development across frontend and backend systems while mentoring teammates and driving continuous improvement.

You will work across Next.js/React-based frontends and Node.js/Express backends, designing robust APIs, with a focus on performance, security, and scalable architectures.

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