OpenAI
Software Engineer, HSM Infrastructure Security, Consumer Devices
$347K–$445K
San Francisco · Full-time · Posted Sep 4, 2026
- Experience
- 5+ years building secure embedded firmware for constrained environments.
About the job
Designs and ships security-critical software and firmware that protect cryptographic keys and enforce policies across OpenAI’s consumer-device HSM infrastructure.
What you'll do
- Build and harden software and firmware at the policy-to-HSM boundary, including signing and certificate-issuance authorization.
- Develop cryptographic interfaces, key-management systems, device-security capabilities, and end-to-end protocols.
- Test and audit embedded security software, threat-model trust boundaries, and integrate capabilities with cross-functional teams.
What they ask for
- 5+ years experience building secure embedded firmware for constrained environments.
- Deep programming experience in C, C++, or Rust.
Nice to have
- Hands-on experience with security-critical software or firmware in or adjacent to an HSM, secure element, TEE, or hardware root of trust.
- Experience with PKI and X.509, secure boot or attestation, HSM platforms, or related cryptographic interfaces.
Pay
$347K – $445K USD base salary
Tools
C, C++, Rust, PKCS#11, OpenSSL, ARM TrustZone, AWS CloudHSM, KMIP
Model-written summary · the original posting is authoritative