Security Engineer, Host Assurance

We are seeking a Security Engineer, Host Assurance to help build the trust foundations for bare-metal platforms across OpenAI’s global infrastructure. This role requires strong technical judgment, the ability to work comfortably at low levels of the stack, and a practical mindset for building systems that are secure, reliable, and usable in fast-moving production environments.

Requirements

• Strong software engineering experience building and operating reliable production systems at scale
• Deep expertise in at least one relevant domain such as PKI, HSMs, machine identity, applied cryptography, secure boot, firmware or hardware security, host attestation, or low-level platform security
• Ability to work across systems boundaries, from services and APIs down to host, boot, firmware, or hardware-adjacent trust mechanisms
• Experience replacing fragile or manual security mechanisms with durable, paved-path infrastructure
• Ability to balance rigor with pragmatism and care about making strong security controls deployable in real-world environments
• Self-directed, low ego, and willing to work across disciplines to solve the most important problems
• Enjoy building in ambiguous spaces where the architecture is still emerging, stakes are at all time high, and the future is being built

Benefits

• 401k Matching
• Relocation Assistance
• Generous Paid Time Off
• Retirement Plan
• Health Insurance
• Dental Insurance
• Vision Insurance