Software Engineer- Cybersecurity and Cryptography

Xona is the navigational intelligence company bringing real-time, centimeter-level certainty to any device, anywhere on Earth.

With Pulsar – the world’s most advanced PNT satellite infrastructure in Low Earth Orbit – Xona will offer a future-proof, backwards-compatible global positioning system optimized for absolute precision, superior power, and robust protection.

We are seeking a high-caliber Software Engineer specializing in Cybersecurity and Cryptography to lead the development of our production-grade ground segment software. This isn't just a standard security role; you will be a primary architect and implementer of the cryptographic foundations that protect our satellite constellation and the sensitive data moving between Earth and orbit.

You will build the "trust anchor" of our mission, ensuring that command uplinks, telemetry downlinks, and user data remain authenticated and encrypted against sophisticated threats.

Required Qualifications

• Cryptographic Implementation: Design and implement production-ready cryptographic modules for key management, identity and access management (IAM), and secure communication protocols (e.g., TLS, AES-GCM, ECC).

• Defensive Programming: Apply rigoro