Latest Fullstack Engineering jobs at LangChain

Senior full-stack engineer leading architecture and implementation for LangSmith’s AI observability and evaluation platform. Requires 5+ years of software engineering experience, backend expertise in Go or Python, frontend expertise in React and TypeScript, and experience with databases and scalable APIs.

Senior fullstack engineer building growth and monetization systems including onboarding, experimentation, billing, and self-serve expansion features. Works across React, TypeScript, Python, and Go in a high-impact 0→1 role.

Build features for LangSmith AI observability and evals platform using Go/Python backend and React/TypeScript frontend. Requires 2+ years fullstack experience, database knowledge (Postgres/Redis), and API design skills.

Senior Fullstack Engineer leads architecture and implementation of observability platform features using Go/Python backend and React/TypeScript frontend. Requires 7+ years experience, database expertise (Postgres/Redis), and API scaling skills; onsite in SF with enterprise collaboration.