Senior Software Engineer — Quantum-Safe & AI-Driven Impact

Arqit in Belfast invites world-class engineers to join a fast-moving product team delivering security software to customers. You will influence what we build next and ship code to customers within weeks, not quarters.

Beyond coding, you will shape product decisions, mentor juniors, and apply AI tooling across the development lifecycle, from design to deployment, ensuring resilience and performance. Join a globally distributed team with strong ties to universities, enabling mentoring, learning,