GrepJob
LangChain

Senior Backend Engineer, Enterprise Readiness & Identity

LangChain
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6 months ago

Base Salary

$175k - $225k/yr

Responsibilities

  • Design and implement backend services for enterprise authentication and authorization.
  • Build and evolve systems for SAML, SCIM, OAuth2, and single sign-on integrations.
  • Develop role-based and attribute-based access control systems at scale.
  • Build and scale billing infrastructure including invoicing and usage-based charging.
  • Implement audit logging and usage tracking for compliance and billing accuracy.
  • Optimize enterprise onboarding and tenant lifecycle management.
  • Collaborate with security and compliance teams to meet regulatory requirements.
  • Engage with enterprise customers to translate requirements into platform capabilities.
  • Write clean, maintainable, and well-documented backend code.

Requirements

  • 5+ years of backend engineering experience with Python or Go.
  • Deep knowledge of authentication and identity standards including OAuth2 and SAML.
  • Experience building and scaling access control systems such as RBAC or ABAC.
  • Experience building billing or usage infrastructure in SaaS environments.
  • Familiarity with Postgres, Redis, APIs, and modern distributed backend infrastructure.
  • Comfort navigating enterprise security, compliance, and multi-tenant architectures.
  • Prior experience building enterprise-grade SaaS platforms or developer platforms.
  • Strong ownership mindset and ability to thrive in fast-paced environments.

Benefits

  • Medical, dental, and vision coverage.
  • Flexible vacation policy.
  • 401(k) plan.
  • Meals provided on in-office days in the US.

Tech Stack

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