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Infrastructure Security Engineer

Material Security United States San Francisco, CA onsite
$266k–$395kestEstimate from 12 posted bands in San Francisco · mid — not the company's offer. Based on 12 similar postings, high confidence.

Estimate from 12 posted bands in San Francisco · mid — not the company's offer. Based on 12 similar postings, high confidence.

Level: Mid, typically 2–6 years. Titles vary by employer; see the levels guide.

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Skills this posting names

PythonGoRustAWSGCPAzureKubernetesLinuxThreat modelingSupply chain securitySecrets managementAudit

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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.