# Infrastructure Security Engineer - Company: [Material]() - Location: San Francisco, CA - Team: Security - Employment type: Full Time - Posted: May 15, 2026 ## Job description **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. ## Apply [Apply on Material]() Canonical job page: