Principal Software Engineer, Infrastructure Security

The role

You will set technical direction and drive execution of critical foundational security services. You will design and implement planet-scale security systems across hardware, operating systems, Kubernetes, networks, and CI/CD.

What you will do

• Own the architecture and roadmap for core security services like authN/Z, policy enforcement, secure proxies, and key management.
• Design and implement planet-scale security systems.
• Lead cross-functional launches with infrastructure and research engineering teams.
• Build or evolve security primitives including identity, attestation, authorization, encryption key lifecycle, and access mediation.
• Leverage frontier models and agents to develop automation and detection tooling.
• Lead design reviews and threat models for major initiatives.
• Mentor engineers across InfraSec and partner teams.

Required qualifications

• Strong software engineering skills with a track record of shipping and operating reliable distributed systems in production.
• Experience building or operating critical infrastructure, especially security infrastructure, at planet scale.
• Deep understanding of security principles, best practices, and common vulnerabilities.
• Demonstrated ability to lead cross-team technical initiatives.
• Expertise and curiosity about using frontier models and agents to effectively solve security challenges.
• Expertise in securing large-scale cloud platforms including multi-cloud networks and cloud-agnostic system design.
• A proactive mindset to identify and address security gaps or inefficiencies through automation and tooling.
• Strong analytical and problem-solving skills.
• Excellent communication skills.

About the company

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. They push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through their products.