Security Engineer, Infrastructure Security

About the Role

OpenAI is seeking a Security Engineer to join our Infrastructure Security (InfraSec) team. InfraSec protects the foundations of OpenAI’s research and production environments, spanning GPU supercomputing clusters, multi-cloud infrastructure, datacenters, networking, storage, and the critical services that power our frontier AI models. Our charter includes securing everything from bare-metal hardware and firmware, to Kubernetes clusters and service meshes, to data storage and access pathways for highly sensitive model weights and user data.

In this role, you will

• Design and build security controls across diverse layers (e.g., physical hardware, firmware/BMC, OS, Kubernetes, networks, and CI/CD) to defend against sophisticated adversaries and insider threats.
• Collaborate with engineering and security teams to drive deployment of security enhancements and control changes across broad-scale infrastructure.
• Tackle high-impact projects such as checkpoint encryption, network isolation, secret management, and machine identity, while continuously raising the security bar for emerging AI workloads.
• Take a generalist approach to building security controls, balancing a mix of security expertise and broad technical skillsets to adapt to evolving challenges.

You will thrive in this role if you have

• Deep understanding of security principles, best practices, and common vulnerabilities.
• A proactive mindset, with the ability to identify and address security gaps or inefficiencies through automation and tooling.
• A track record of delivering scalable solutions and driving impactful changes across infrastructure in real-world projects.
• 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 technical and non-technical stakeholders.
• Excitement about collaborating with cross-functional teams to build secure, reliable systems that scale globally.