Quantum Communication System Developer

Xen Quantum Ltd • cambridge, england, United-Kingdom • Posted June 11, 2026

Location cambridge, england
Job Type Full-time
Category IT & Technology
Posted June 11, 2026

About us


Xen Quantum is building next-generation quantum communication systems based on silicon photonics and patented architecture, enabling practical and scalable quantum key distribution (QKD). Our technology simplifies implementation and lays the foundation for high-volume manufacturing and real-world deployment.


Position Overview


We're looking for a Quantum Communication System Developer to join as one of our first technical hires and play a defining role in shaping both our technology and the engineering culture.


This is a hands‑on role at the intersection of quantum optics, photonics, cryptography and system engineering – spanning laboratory development, system integration, and early field deployment with customers.


What You'll Do



  • Develop, integrate, and characterize quantum key distribution (QKD) systems, with a focus on optical subsystems and protocol execution

  • D...

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