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LangChain

JavaScript Engineer (Open Source Team)

$160k – $240k / yr

San Francisco, CAPosted 28 August 2026From Ashby
LangChain

Maintaining and extending the JavaScript side of LangChain's open source frameworks, which the posting names as LangChain, LangGraph and Deep Agents. The work is public: it is the libraries other companies build agents on rather than an internal codebase, so the role carries the review, release and community load that comes with that. The posting places the team alongside the commercial observability and deployment products but keeps the open source surface as its own remit.

LangChain