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.