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

Hiring organization: [LangChain](https://career.thegoodapps.co/organizations/langchain)

Canonical page: https://career.thegoodapps.co/jobs/a74e82c0-7b42-4937-a1b3-8f11f040bf26

Listed on LangChain's own careers site. Applications go to them directly.

- Employment type: full time
- Seniority: Mid
- Location: Boston, NY
- Salary: 145000 – 180000 USD per year

## Summary

This fullstack role involves building features for LangSmith, an observability and evaluation platform for AI applications. You'll work across a Go/Python backend and React/TypeScript frontend, collaborating with product teams and enterprise customers to ship features quickly and iterate based on feedback.

_Our summary, not LangChain's wording._

## Skills named

API Design, Go, Python, React, Redis, TypeScript

## Required

- 2+ years building complex platform products
- Fullstack experience with Go or Python backend and React + TypeScript frontend
- Understanding of Postgres and Redis
- Experience designing and scaling APIs in data-intensive applications
- Ownership mindset and ability to ship quickly and iterate

## Nice to have

- Experience with AI/LLM applications
- Developer tools background
- Observability platform experience

Apply on LangChain's site: https://jobs.ashbyhq.com/langchain/ddf92275-1cc3-49c0-9f25-e8ded43b07f6/application