Infrastructure Security Engineer

About the role Own infrastructure security across the systems that train and serve frontier models. Your expertise spans supply chain, identity and secrets, multi-cloud Kubernetes, workload isolation, runtime defense, and detection and response across thousands of compute nodes. What you'll do • Audit and harden multi-cloud Kubernetes clusters • Design authorization, admission, and workload isolation policy • Secure the software supply chain from build to deploy • Manage identity and secrets across clusters and accelerators • Protect high-value assets including model weights and training data • Build detection and response tooling for clusters, workloads, and the underlying fabric What you'll need • BS in CS, EE, or related field, or equivalent experience • Software engineering skills: Rust, Go, or Python • Strong Linux internals: namespaces, cgroups, seccomp, capabilities • Deep Kubernetes security: authz, admission, workload isolation, runtime defense • Software supply chain security: SBOM, signing, attestation • Identity and secrets management • Experience protecting high-value assets (model weights, training data, or equivalent) • Track record in detection, response, and threat modeling • Multi-cloud experience: AWS, GCP, Azure, CoreWeave, Crusoe What we offer • Top-tier compensation structured to recognize and retain the best talent • Meaningful equity • Comprehensive medical, dental, vision, life, and disability insurance • Parental leave for all new parents, including adoptive and surrogate journeys • Flexible PTO • Paid Holidays • Relocation support Equal Employment Opportunity We're an Equal Opportunity Employer and do not discriminate on the basis of any protected status under applicable law.