Jobs at 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.

LangChain has established itself as the de facto framework for building production-grade LLM applications, filling the architectural vacuum between raw model APIs and real-world enterprise needs. By standardizing primitives like Chains, Agents, and Workflows, LangChain enables developers to move beyond brittle prompt engineering into structured, composable reasoning systems. The ecosystem scale is unmatched: more than 130 million downloads, 110,000 GitHub stars, and 700+ integrations with model providers, vector databases, and developer tools. LangGraph now powers stateful, long-running agent workflows at nearly 400 enterprises, while LangSmith provides the observability and debugging layer critical for production reliability. The result is a full lifecycle platform spanning build, deploy, and monitor, positioning LangChain as foundational infrastructure for the AI application layer.

The commercial traction validates this positioning. LangChain reached a $200 million valuation in early 2024, monetized to an estimated $8.5 million in its first year through LangSmith and enterprise services, and now counts enterprises like LinkedIn, Uber, Klarna, and MUFG Bank as customers. Its open-source adoption flywheel drives bottom-up developer pull while LangSmith introduces sticky, revenue-generating enterprise contracts. Founders Harrison Chase and Ankush Gola bring deep credibility with the developer community and a track record of rapid iteration, enabling LangChain to stay ahead of both open-source alternatives and cloud-native incumbents like AWS Bedrock and Google Vertex. With the AI agent market projected to grow from $5 billion in 2024 to $47 billion by 2030, LangChain is positioned not just as another tool, but as the cognitive architecture underpinning the next era of software.

Written as of August 2025