Senior Security Engineer

LangChain
New York, CA
Job Description
Senior Security Engineer position at LangChain, focusing on securing agentic workloads end-to-end, from SDK through LangSmith/Graph services and customer integrations. The role requires expertise in cloud/infrastructure security or application security and involves defining security roadmap, hardening wins, and raising the bar on how AI infra is protected in production.

Requirements

  • 5+ years in security engineering with strong software skills (Python or Go; TypeScript a plus)
  • Depth in cloud/Kubernetes security (e.g., GCP/AWS IAM, workload identity, admission controls, network policies)
  • Hands-on AppSec: code review, threat modeling, secure design, secrets & key management, authn/z patterns, multi-tenant isolation
  • Experience building detection & response and running incident management
  • Familiarity with supply-chain security (SBOM, sigstore/cosign, SLSA-style controls) and dependency risk management
  • Clear, pragmatic communication with engineers and customers

Benefits

  • Health and dental coverage
  • Flexible vacation
  • 401(k) plan
  • Life insurance
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