Python OSS Engineer

LangChain
San Francisco, Boston, Cambridge
Workplace: OnsiteFull timeUSD 160,000 - 225,000 annuallyFunction: Software EngineeringExperience: 5+ yearsSkills: ["Python","Open source","LangChain","LangGraph","LangSmith","LLM"]

Core maintainer role focused on maintaining and improving the LangChain Python package, with emphasis on core abstractions, runtime, and documentation. You’ll answer user questions, resolve issues, and build example applications, collaborating across engineering to advance open-source LangChain and LangGraph projects.

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FursaFursa
LangChain
LangChain
1 year ago

Python OSS Engineer

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

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

Job Summary

Core maintainer role focused on maintaining and improving the LangChain Python package, with emphasis on core abstractions, runtime, and documentation. You’ll answer user questions, resolve issues, and build example applications, collaborating across engineering to advance open-source LangChain and LangGraph projects.
Location: San Francisco, Boston, Cambridge
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Maintain and improve the core abstractions and runtime of the langchain and langgraph packages
  • •Improve and update documentation for the LangChain ecosystem
  • •Answer user questions and resolve issues reported by the community
  • •Use LangChain to build example applications and demonstrate best practices
  • •Collaborate with the engineering team to ensure high quality and reliable OSS releases

Pay and Benefits

Salary: USD 160,000 - 225,000 annually
Equity and Bonus:Equity
Perks:Health InsuranceDental401kEquityPaid Leave

Key Requirements

  • •5+ years of software engineering or applied machine learning background
  • •Strong written and oral communication skills to explain technical concepts clearly to technical and non-technical stakeholders
  • •Ability to thrive in a fast-moving environment and identify the most impactful work
  • •Ownership-minded and able to manage work without close supervision
  • •Experience maintaining and improving Python-based packages (LangChain/langGraph) is a plus
Experience:5+ yearsOpen sourceSoftware engineeringPython
Skills:PythonOpen sourceLangChainLangGraphLangSmithLLM
Tech Stack:PythonLangChainLangGraphLangSmithLLM

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