Cryptography Engineer – Unifacator™ Security

Role overview Build the cryptographic security layer for a platform that uses biometric access to protect consent records and key exchanges. The work spans signing, key management, privacy-preserving validation, and security testing, with an emphasis on robust protocol implementation and a transition toward post-quantum cryptography.

Responsibilities - Implement digital-signature workflows that can move from ECDSA toward post-quantum cryptography. - Design and deploy key rotation and recovery mechanisms, including approaches based on Shamir Secret Sharing. - Develop zero-knowledge proof components for validating attributes while limiting information disclosure. - Conduct penetration testing and threat modeling to identify weaknesses in protocols and integrations. - Help secure biometric-gated encryption and the consent and key-exchange flows it supports.

Requirements - At least 5 years of applied cryptography experience. - Proficiency in C++ or Rust. - Knowledge of Kyber, Dilithium, and biometric key binding. - A strong track record implementing secure protocols.

Benefits and work setup - Full-time remote role. - Compensation listed as either $130,000–$160,000 or $90,000 plus 0.75%–1.5% equity.