Senior Security Engineer

LangChain
San Francisco, New York
Workplace: OnsiteFull timeUSD 180,000 - 225,000 annuallyFunction: CybersecurityExperience: 5+ yearsSkills: ["Communication","Problem-solving","Teamwork","Analytical thinking"]

Lead security efforts for LangChain’s core product teams, driving end-to-end security across SDKs, services, and customer integrations. Own security roadmap, hardening wins, and secure-by-default auth and tenancy across cloud and self-hosted environments. Manage vulnerabilities, perform Pen testing, and implement scalable security checks and robust incident response.

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FursaFursa
LangChain
LangChain
7 months ago

Senior Security Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 9 hours agoStatus: Live

Job Summary

Lead security efforts for LangChain’s core product teams, driving end-to-end security across SDKs, services, and customer integrations. Own security roadmap, hardening wins, and secure-by-default auth and tenancy across cloud and self-hosted environments. Manage vulnerabilities, perform Pen testing, and implement scalable security checks and robust incident response.
Location: San Francisco, New York
Workplace: Onsite
Employment Type: Full time
Job Function: Cybersecurity
Seniority: Sr. Manager level

Key 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

Pay and Benefits

Salary: USD 180,000 - 225,000 annually
Equity and Bonus:Equity
Perks:Health Insurance401kDentalRemote WorkPaid LeaveWellness StipendLearning Budget

Key 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
Experience:5+ yearsCybersecurityCloud securitySaaSSecurity engineering
Skills:CommunicationProblem-solvingTeamworkAnalytical thinking
Tech Stack:PythonGoTypeScriptKubernetesAWSGCPSigstoreCosignSLSASBOMTerraformHelm

Company Brief

LangChain
Provides an open-source framework and commercial platform (LangSmith/LangGraph) for building, testing, monitoring, and deploying LLM-powered applications and agentic AI for developers and enterprises.
Industry: Developer Tools
Company Size: Medium (51 to 250 employees)
Revenue: USD 10M to 25M
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series B
Headquarters: San Francisco, United States
Founded: 2022
WebsiteLinkedIn