Software Engineer, Infrastructure Security

OpenAI is seeking a Security Software Engineer to join the Infrastructure Security team. The role involves designing and building critical foundational security services such as authentication systems, proxies, access brokers, and key management platforms for OpenAI's supercomputing environment. The engineer will partner with infrastructure and research teams to embed security into high-performance compute clusters, develop automation and detection tooling, and drive initiatives like line-speed,

Strong software engineering skills in Python, Go, Rust, or C/C++ with experience building critical security infrastructure. Deep understanding of security principles, expertise in securing large-scale cloud platforms (Azure, AWS, GCP), familiarity with Kubernetes and container security, and knowledge of authentication standards like OIDC, mTLS, SPIFFE/SPIRE. Proactive mindset, strong analytical skills, and excellent communication.