Security Software Engineer, InfraSec — Secure AI Compute

OpenAI; United States; On-site; USD 230,000 - 385,000; Full time

Job summary

OpenAI is seeking a Security Software Engineer to join the InfraSec team. You will design and build foundational services, such as authentication systems, egress/ingress proxies, access brokers, and key management platforms, that demand high standards of reliability, scalability, and software craftsmanship.

These systems form the security backbone of OpenAI's supercomputing environment and must remain robust under intense scale and adversarial pressure.

Qualifications

• Strong software engineering in Python/Go/Rust/C/C++.
• Experience building or operating critical security infrastructure.
• Deep understanding of security principles, best practices, and vulnerabilities.

Responsibilities

• Architect and implement production-grade security services (e.g., auth services, access brokers, secure proxies, key-management infrastructure) that provide strong guarantees across hardware, operating systems, Kubernetes, networks, and CI/CD.
• Partner with infrastructure and research engineers to embed security into high-performance compute clusters, enabling rapid model training and deployment without compromising protection.
• Develop automation and detection tooling to continuously identify and mitigate risks in large-scale cloud and on-prem environments.
• Drive high-impact initiatives such as line-speed encryption, machine identity, and network isolation, continuously raising the security bar for emerging AI workloads.
• Lead or participate in design reviews and threat models to ensure new systems launch with strong security foundations and operational excellence.

Skills

Python

Go

Rust

C/C++

Kubernetes

Tools

Kubernetes

Service meshes

Job description

OpenAI is seeking a Security Software Engineer to join the InfraSec team. You will design and build foundational services, such as authentication systems, egress/ingress proxies, access brokers, and key management platforms, that demand high standards of reliability, scalability, and software craftsmanship.

These systems form the security backbone of OpenAI's supercomputing environment and must remain robust under intense scale and adversarial pressure.