Senior Frontend Engineer - AI Observability & Evals Platform

LangChain; San Francisco (CA); On-site; USD 175,000 - 240,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

401(k) plan

Meals on in-office days

Job summary

LangChain in San Francisco, CA is seeking an experienced frontend engineer to advance LangSmith, our enterprise platform for LLM observability, testing, and debugging. You will build user-facing features with React and TypeScript, translate designs into high-quality code, and collaborate with backend and UX teams.

The role is in-person 5 days/week in SF, NY, and Boston; compensation ranges from $175,000 to $240,000 USD, with equity and benefits.

Qualifications

• Strong proficiency in React, JavaScript, and TypeScript.
• Experience with Babel, Vite, Webpack, NPM, and Yarn.
• Familiarity with REST APIs and collaboration with backend teams.
• Knowledge of JWT-based authorization.
• Good communication skills and start-up minded attitude.

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

Frontend architecture

REST APIs

JWTs

Communication

Ownership mindset

CS fundamentals

Education

Bachelor's degree in Computer Science or related field

Tools

Babel

Vite

Webpack

NPM

Yarn

Job description

LangChain in San Francisco, CA is seeking an experienced frontend engineer to advance LangSmith, our enterprise platform for LLM observability, testing, and debugging. You will build user-facing features with React and TypeScript, translate designs into high-quality code, and collaborate with backend and UX teams.

The role is in-person 5 days/week in SF, NY, and Boston; compensation ranges from $175,000 to $240,000 USD, with equity and benefits.