Frontend Engineer: AI Observability & Evals Platform

LangChain; San Francisco (CA); Hybrid; USD 160,000 - 195,000; Full time

Benefits offered by this job

Equity

Healthcare benefits

401(k)

Meals on office days

Flexible vacation

Job summary

LangChain is seeking a frontend engineer to develop features on LangSmith, our enterprise platform for LLM observability, testing, and debugging. You will build user-facing components using React and TypeScript, translate designs into high-quality code, and optimize performance across devices.

Requirements include 2+ years in frontend engineering, proficiency with React, JavaScript, TypeScript, and experience with Babel/Vite/Webpack, REST APIs, and modern auth like JWTs.

Qualifications

• 2+ years of frontend engineering experience with React, JavaScript and TypeScript.

Responsibilities

• Develop new user-facing features using React & TypeScript.
• Build reusable components and front-end libraries for future use.
• Translate designs and wireframes into high-quality code.
• Optimize components for maximum performance across devices and browsers.
• Collaborate with fullstack and backend developers and UX/UI designers to enhance usability.

Skills

React

JavaScript

TypeScript

REST APIs

JWTs

User experience

Communication

CS fundamentals

Education

CS degree or related field

Tools

Babel

Vite

Webpack

NPM

Yarn

Job description

LangChain is seeking a frontend engineer to develop features on LangSmith, our enterprise platform for LLM observability, testing, and debugging. You will build user-facing components using React and TypeScript, translate designs into high-quality code, and optimize performance across devices.

Requirements include 2+ years in frontend engineering, proficiency with React, JavaScript, TypeScript, and experience with Babel/Vite/Webpack, REST APIs, and modern auth like JWTs.