Software Engineer - AI, Cloud & Quantum-Safe Systems

Arqit is expanding its engineering team in Belfast, UK, delivering world‑class quantum‑safe encryption solutions. You will join a close‑knit product squad, refine system designs with senior engineers, and apply AI tooling across the full software lifecycle.

Expect fast decision cycles, strong autonomy, and opportunities to mentor and grow. The role focuses on building scalable services, collaborating across teams, and delivering high‑quality software in a dynamic, global environment while