Senior Fullstack Engineer, Growth & Monetization
LangChainSan Francisco, California, United States • New York, New York, United States • Boston, Massachusetts, United States
Posted October 23, 2025
Full Time
About the Company
LangChain is a platform for building reliable agents, offering tools like LangGraph for orchestration and LangSmith for evaluation. With hundreds of integrations, it empowers engineering teams to develop, deploy, and manage enterprise-grade agents efficiently.
Job Description
LangChain is seeking a Senior Fullstack Engineer to build the foundational product features and integrations driving user acquisition, experimentation, and rapid expansion. The role focuses on streamlining activation, optimizing packaging, and delivering a seamless growth story. The position will be in person in New York City, San Francisco, or Boston.
Requirements
- Extensive fullstack software development experience using React, TypeScript, and Go or Python
- Strong product intuition and a track record of working on monetization, pricing, or activation features
- Familiarity with usage metering, subscriptions, and internal tooling for pricing experiments
- Comfortable working with REST APIs, Postgres, Redis, and modern backend infra
- Startup DNA with the ability to thrive in fast-paced, zero-to-one environments
- Self-directed with an ownership mindset
