Senior Frontend Engineer for AI Observability Platform

LangChain, Inc.; Boston, Northern (MA, KY); Hybrid; USD 175,000 - 240,000; Full time

Benefits offered by this job

Medical, dental, and vision coverage

401(k) plan

Flexible vacation

Job summary

LangChain, Inc. is seeking an experienced frontend engineer to develop and enhance features on LangSmith, our enterprise platform for observability, evaluation, and production reliability of AI systems.

Onsite in Boston, you will translate designs into high-quality code and collaborate with cross-functional teams to improve usability. You’ll own frontend development with React and TypeScript, build reusable components, and optimize performance across devices.

Qualifications

• Extensive front-end engineering experience with React, JavaScript and TypeScript.
• Hands-on experience with front-end development tools like Babel, Vite, Webpack, NPM, and Yarn.
• Familiarity with REST APIs and collaboration with back-end engineers.
• Knowledge of modern authorization mechanisms, such as JWTs.
• Passion for user experience and building clean, intuitive interfaces.
• Strong written and verbal communication, especially for technical and non-technical stakeholders.

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

TypeScript

JavaScript

REST APIs

JWTs

User experience

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Babel

Vite

Webpack

NPM

Yarn

Job description

LangChain, Inc. is seeking an experienced frontend engineer to develop and enhance features on LangSmith, our enterprise platform for observability, evaluation, and production reliability of AI systems.

Onsite in Boston, you will translate designs into high-quality code and collaborate with cross-functional teams to improve usability. You’ll own frontend development with React and TypeScript, build reusable components, and optimize performance across devices.