Infrastructure Security Engineer
Role summary by JobGrid
Infrastructure Security Engineer at Material: San Francisco, United States; On-site; Senior; IT; Security Engineer. JobGrid adds normalized role facts, source context, and a path to the employer application page so candidates can compare the listing before applying.
- Location and workplace: San Francisco, United States, On-site
- Role classification: IT, Security Engineer, Senior
- Source freshness: checked by JobGrid on 2026-06-10.
- Application path: candidates continue to the employer application page with non-personal referral tags.
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.