CareerPlan

Frontend Engineer, AI Observability & Evals Platform

San Francisco, CAFull-time$160k2026-08-12 → 2026-11-12
Hybrid · United States

Core

Develop and enhance user-facing features for LangSmith, an enterprise platform for LLM application observability, testing, and debugging.

Role type

Frontend Engineer

Builds

Reusable React components and front-end libraries for the LangSmith platform

Domain

AI/LLM infrastructure, Observability, Enterprise SaaS

Deliverable

product features

Required skills

React, TypeScript, JavaScript, REST APIs, JWT, Babel, Vite, Webpack, NPM, Yarn

Responsibilities

Develop new user-facing features, build reusable components, translate designs into code, optimize component performance, collaborate with fullstack/backend developers and UX/UI designers

Seniority

Mid-level, hands-on IC