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.