Principal Security Engineer, Infrastructure Security

OpenAI, US - Remote +3

The role

OpenAI is seeking a Principal 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.

As a principal engineer, you will set technical direction and drive execution on high-impact infrastructure security programs, partnering across various orgs at OpenAI to deliver durable controls that raise the security bar at OpenAI scale.

All jobs

Principal Security Engineer, Infrastructure Security

OpenAI, US - Remote +3

Posted pay

$401K–$510K

a year

Compared with similar jobs

This base pay is above the median for principal security engineering jobs in the US.

Median: $230K a year
Other jobs in the group: 71

We compare the middle of each posted range. This is base pay as posted. The group does not include this job.

Location: US - Remote +3
Work type: Remote
Level: Principal
Skills in the job text: Kubernetes
Posted: Mar 25, 2026
Last check: 6 h ago
Job type: Security engineering, Infra, platform & SRE, Inference & ML systems

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OpenAI

Open tech jobs: 424
With posted pay: 90%
Median posted base: $266K–$405K

About OpenAI: funding, hiring and pay

OpenAI

About OpenAI: funding, hiring and pay

Company facts

Money raised: $51.3BSum of funding rounds on record
Newest round: Funding roundMar 31, 2025

Funding records can have errors and can be missing. The company page has the links.

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The role

What you will do

Own end-to-end security outcomes for one or more critical infrastructure areas, including multi-quarter strategy, roadmap, and delivery.
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.
Lead cross-functional programs to deploy security enhancements and control changes across broad-scale infrastructure, balancing security guarantees with reliability and velocity.
Take a generalist approach to building security controls, balancing a mix of security expertise and broad technical skillsets to adapt to evolving challenges.
Lead and/or drive threat modeling and design reviews for major infrastructure changes, ensuring strong security foundations and operational excellence.
Mentor and level up engineers across InfraSec and partner teams, contributing to a strong security culture through guidance, reviews, and technical leadership.

You will thrive in this role if you have

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.

Principal Security Engineer, Infrastructure Security

The role

Principal Security Engineer, Infrastructure Security

The role

The team

What you will do

You will thrive in this role if you have

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