Applied Cryptography & Key Recovery Engineer (Remote)

HushOne, Inc.; Kirkland (WA); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

Equity (stock options)

401(k) with company match

Health, dental and vision insurance

Gym membership

AI tokens budget

Job summary

HushOne, Inc. is seeking a security-focused engineer to design and implement cryptographic solutions for protecting sensitive data. You will work with encryption, key hierarchies, rotation and secure sharing, while modeling recovery scenarios and documenting decryption access.

Ideal candidates reason about entropy, authentication and protocol composition, and understand cryptographic erasure limits. Realistic, person-centered recovery design is required.

Qualifications

• Applied cryptography with secure implementation experience.
• Reason about entropy, authentication, and protocol composition.
• Understand the limits of cryptographic erasure.
• Design recovery for a real person, not an ideal user.

Responsibilities

• Use cryptographic libraries and protocols for encryption, key hierarchy, rotation and secure sharing.
• Model recovery contacts, service compromise and insiders; document who can decrypt data.
• Deliver a reviewed key-management design and a tested recovery prototype within 90 days.
• Explain how a user can recover after losing devices without undisclosed master keys.

Skills

Applied cryptography

Secure implementation

Entropy reasoning

Authentication

Protocol composition

Cryptographic erasure

Tools

HSM

Secure enclave

Job description

HushOne, Inc. is seeking a security-focused engineer to design and implement cryptographic solutions for protecting sensitive data. You will work with encryption, key hierarchies, rotation and secure sharing, while modeling recovery scenarios and documenting decryption access.

Ideal candidates reason about entropy, authentication and protocol composition, and understand cryptographic erasure limits. Realistic, person-centered recovery design is required.