Principal Security Engineer, Infrastructure Security

Highlights

• Secure GPU supercomputing clusters powering frontier AI models.
• Own end-to-end security for critical research and production infrastructure.
• Set technical direction for infrastructure security at OpenAI scale.

What they offer

• Equity

Ideal candidate

A principal-level security leader who thrives on owning complex infrastructure programs end-to-end and raising the bar through technical direction and mentorship. Proactive, judgment-driven collaborator excited to protect frontier AI systems at global scale.

Requirements

• Deep understanding of security principles, best practices, and common vulnerabilities, including strong security judgment under ambiguity
• A proactive mindset, with the ability to identify and address security gaps or inefficiencies through automation and tooling
• Expertise and curiosity about using frontier models and agents to effectively solve security challenges
• A track record of leading large, cross-org initiatives from concept to rollout, including navigating tradeoffs, driving alignment, and delivering measurable risk reduction
• Deep expertise in the security of cloud platforms (e.g., Amazon AWS, Microsoft Azure), especially securing multi-cloud networks and infrastructure, and designing cloud-agnostic systems
• Experience securing on-prem deployments and datacenters from construction to multi-tenant use
• Familiarity with container security, orchestration security, and authentication/authorization
• Strong analytical and problem-solving skills, with an ability to think critically and objectively assess security risks
• Excellent communication skills, with the ability to convey complex security concepts to executive, technical, and non-technical stakeholders
• Excitement about collaborating with cross-functional teams to build secure, reliable systems that scale globally