JavaScript Engineer (Open Source Team)

About LangChain

At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks — LangChain and LangGraph — see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting of LangSmith and LangGraph Platform, enables teams to build, test, run, and manage agents at scale across their organization.

Founded in 2023, LangChain powers top engineering teams at companies like Replit, Lovable, Clay, Klarna, LinkedIn, and more.

About the role:

We’re looking to add a core maintainer to the LangChain team. This person would be responsible for maintaining and improving the LangChain JavaScript package. In-person in SF preferred.

• Improving the core abstractions and runtime of the langchain and langgraph packages

• Improving documentation

• Answering user questions and resolving issues

• Use langchain to build example applications

How to be successful in this role

• Have a Software Engineering background

• Have strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders

• Can thrive in a fast-moving environment. Views unstructured environments as an opportunity to figure out the most impactful work and define the future success of the company

• Are ownership-minded. You excel at managing your work efficiently and effectively without the need for close supervision

Compensation & Benefits:

• Competitive salary and equity stake for role and stage of company. Commensurate with experience.

• Annual salary range: $115,000-$155,000 USD, $145,000-$195,000 USD for Senior Engineer candidates