Senior Security Engineer

LangChain • New York, NY

4d

About The Position

You’ll be the hands‑on security lead embedded with core product teams to secure agentic workloads end‑to‑end, from SDK through LangSmith/Graph services and customer integrations. You’ll define our security roadmap, land immediate hardening wins, and raise the bar on how AI infra is protected in production. We are looking for engineers who have expertise in cloud/infrastructure security or application security (both is a plus!)

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.

Nice To Haves

• Security for SaaS + self‑hosted offerings, including air‑gapped deployments.
• Proficiency with AI tooling to expedite security reviews
• Solid understanding of AI itself, including AI threats, adversarial testing
• Exposure to SOC 2 / ISO 27001 programs and evidence automation.
• Experience with Go services and Infra as Code (Terraform/Helm), plus policy‑as‑code (OPA/Gatekeeper/Kyverno).
• Knowledge of privacy patterns (data minimization, retention, masking, workspace scoping).

Responsibilities

• Own product & platform security: Design and drive application/infrastructure security controls across LangSmith, LangGraph, and the LangChain SDK ecosystem (Python/TS/Go).
• Secure-by-default authN/Z: Evolve SSO/SAML/OIDC/SCIM, token lifecycles, service‑to‑service auth, and tenant isolation for cloud and self‑hosted customers.
• Vuln management: Own scanning/triage/patch SLAs; coordinate with engineering to remediate quickly without slowing delivery.
• Ship code, reviews, and tooling: Land secure designs, write PRs, perform penetration testing, and introduce lightweight checks (linters, dependency/supply‑chain scanning, SBOM/SLSA provenance) to enable security at scale.
• Hardening & operations: Network segmentation/Zero Trust, Kubernetes posture, secrets management, key rotation, least‑privilege IAM, egress controls

Benefits

• health and dental coverage
• flexible vacation
• a 401(k) plan
• life insurance

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed