# FullStack Engineer, AI Observability & Evals Platform (LangSmith) at LangChain

- Company: LangChain
- What the company does: LangChain enables every company to own their intelligence. Control, govern, and compound intelligence with an open agent engineering platform. Backed by Sequoia, IVP and Lux.
- Company website: https://www.langchain.com/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA
- Work setup: On-site
- Pay: $145K to $180K base salary per year (USD)
- Posted: 2026-10-14
- Apply by: 2026-11-28
- Apply: https://jobs.ashbyhq.com/langchain/ddf92275-1cc3-49c0-9f25-e8ded43b07f6?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/langchain-fullstack-engineer-ai-observability-and-evals-platform-langsmith/

## About the role

We're looking for a Fullstack Engineer to work on LangSmith, our commercial AI observability and evals platform product. In this role, you'll have the opportunity to build new features and functionality for the platform while working close enterprise customers, developer end-users and internal stakeholders. Develop and implement key product features working across our entire Go, Python, and Typescript stack Found on 1752vc Careers, the job board for startup and VC roles.

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/langchain-fullstack-engineer-ai-observability-and-evals-platform-langsmith/