Senior Backend Engineer, Enterprise Readiness & Identity

LangChain
New York
Workplace: OnsiteFull timeUSD 175,000 - 225,000 annuallyFunction: Software EngineeringExperience: 5+ yearsSkills: ["Communication","Problem-solving","Leadership"]

Senior backend engineer focused on enterprise readiness and identity to build secure, compliant, scalable authentication, authorization, billing, and tenant management features. You’ll work across RBAC/ABAC, SSO integrations, and multi-tenant architectures with enterprise customers, collaborating with infra, security, and product teams to shape scalable enterprise offerings. In-person role in NYC, SF, or Boston.

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FursaFursa
LangChain
LangChain
8 months ago

Senior Backend Engineer, Enterprise Readiness & Identity

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Source: Company careers pageValidated by: Fursa AI
Last checked: 19 hours agoStatus: Live

Job Summary

Senior backend engineer focused on enterprise readiness and identity to build secure, compliant, scalable authentication, authorization, billing, and tenant management features. You’ll work across RBAC/ABAC, SSO integrations, and multi-tenant architectures with enterprise customers, collaborating with infra, security, and product teams to shape scalable enterprise offerings. In-person role in NYC, SF, or Boston.
Location: New York
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Design and implement backend services powering enterprise authentication, authorization, billing, and tenant provisioning
  • •Build and evolve systems for SAML, SCIM, OAuth2, and single sign-on (SSO) integrations
  • •Develop robust RBAC/ABAC models at org scale and scale billing infrastructure for invoicing and usage-based charging
  • •Implement audit logging, usage tracking, and metering pipelines to support compliance and billing accuracy
  • •Collaborate with security/compliance teams and infra to ensure identity features are performant, reliable, and observable

Pay and Benefits

Salary: USD 175,000 - 225,000 annually
Perks:Health InsuranceDental401kLife InsurancePaid Leave

Key Requirements

  • •5+ years backend engineering experience with Python or Go (both preferred)
  • •Deep knowledge of authentication and identity standards (OAuth2, SAML, JWTs, SCIM)
  • •Experience building and scaling access control systems (RBAC, ABAC, permissions frameworks)
  • •Experience with billing and usage infrastructure in SaaS environments
  • •Familiarity with Postgres, Redis, APIs, and modern distributed backend infra
Experience:5+ yearsEnterpriseSaaSBackend
Skills:CommunicationProblem-solvingLeadership
Tech Stack:PythonGoOAuth2SAMLJWTsSCIMRBACABACPostgresRedisAPIsCloudObservability

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