Posted by employer 1 year ago
First seen on Joblaze 6 months ago
Last verified on the company career page 6 hours ago
Requirements
- Experience
- 5+ years
Not disclosed in this posting: visa sponsorship.
Benefits
Joblaze summary
The Python OSS Engineer at LangChain plays a crucial role in enhancing the LangChain Python package, focusing on improving core abstractions, documentation, and user support. This position requires strong software engineering skills, particularly in Python, along with the ability to communicate complex concepts effectively. Ideal candidates have over five years of experience and thrive in dynamic environments, contributing to a team that values community engagement and impactful development. LangChain is rapidly growing, backed by significant funding, and offers a collaborative atmosphere for shaping AI technology.
Joblaze insights
- Listed about 6 months ago — first seen on Joblaze April 14, 2026. Last confirmed on LangChain's careers page October 27, 2026.
- Salary band is below the typical range for AI/ML roles (median ~$190,000).
- Starts above 16% of 202 comparable senior ai/ml roles in United States that list Python we track (median $182,000 across 70 companies). See Python salary trends
- Python appears in 52.3% of 551 comparable senior ai/ml roles in United States; LangGraph appears in 2.9% of 551 comparable senior ai/ml roles in United States.
Quick facts
- Is the Python OSS Engineer role remote?
- No — this is an on-site role in San Francisco, CA.
- What's the salary range?
- LangChain lists $160,000–$225,000 for this role.
- How much experience is required?
- At least 5 years of relevant experience for this Python OSS Engineer role.
- Where is the role based?
- LangChain is hiring for this position in San Francisco, CA.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: LangChain, LangGraph, Python.
- What seniority level is this role?
- LangChain targets senior candidates for this position.
- Is this full-time or contract?
- Full-time for this Python OSS Engineer role at LangChain.
From the original posting
About Us
About the Team
The Python Open Source team maintains and evolves the core LangChain Python ecosystem used by millions of developers worldwide. We focus on building reliable, well-designed abstractions for developing AI agents and integrating them with real-world tools and systems. The team works closely with the open-source community, incorporating feedback and contributions while ensuring the core libraries remain stable, scalable, and production-ready. Our work defines the developer experience for building AI applications with Python.
About the role
In person 5 days/week in San Francisco, CA or Boston, MA (SF preferred)
We’re looking to add a core maintainer to the LangChain team. This person would be responsible for maintaining and improving the LangChain Python package.
Improving the core abstractions and runtime of the
langchainandlanggraphpackagesImproving documentation
Answering user questions and resolving issues
Use
langchainto build example applications
What You'll Do
Improve the core abstractions and runtime of the LangChain and LangGraph packages
Improve documentation across the LangChain ecosystem
Answer user questions and resolve issues from the community
Use LangChain to build example applications that demonstrate how to build production AI systems
What You'll Bring
5+ years of software engineering or applied machine learning experience
Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
The ability to thrive in a fast-moving environment and view unstructured environments as an opportunity to identify impactful work and define the future success of the company
An ownership-minded approach to work, with the ability to manage your work efficiently and effectively without the need for close supervision
Compensation
Annual salary range: $150,000- $250,000
Standard company text repeated across LangChain's postings is omitted here.