# Senior Fullstack Software Engineer, AI Observability & Evals Platform (NY)

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

Canonical page: https://career.thegoodapps.co/jobs/68ca2c8c-0a59-4d95-9148-3f06400e0c71

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

- Seniority: Senior
- Location: San Francisco, CA
- Salary: 175000 – 240000 USD per year

## Summary

LangChain is hiring a senior fullstack engineer to build features for LangSmith, their observability and evaluation platform for AI agents. You'll work across Go, Python, and TypeScript while mentoring junior engineers and engaging directly with enterprise customers on a product used by Fortune 500 companies.

_Our summary, not LangChain's wording._

## Skills named

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

## Required

- 5+ years of software engineering experience
- Fullstack engineering with Go or Python backend and React/TypeScript frontend
- Strong understanding of PostgreSQL and Redis
- Experience designing and scaling APIs for high-performance applications
- Ability to ship fast and iterate based on feedback
- Cross-functional collaboration skills

## Nice to have

- Experience with AI/LLM-powered applications
- Developer tools experience
- Observability platforms experience

Apply on LangChain's site: https://jobs.ashbyhq.com/langchain/4beade3b-0bf2-4720-b553-0309880e22b4/application