Senior Frontend Engineer — React/TypeScript (In-Person)

LangChain; New York (NY); On-site; USD 175,000 - 240,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Flexible vacation

401(k) plan

In-office meals

Job summary

LangChain is seeking an experienced frontend engineer to advance LangSmith, our enterprise platform for LLM observability, testing, and debugging. This in-person role covers a range of sites including San Francisco, New York, and Boston, with ownership of high-quality UI features.

You will develop user-facing features, build reusable components, and translate designs into code while optimizing performance and collaborating with cross-functional teams to deliver exceptional user experiences.

Qualifications

• Experience with React, JavaScript, and TypeScript.
• Experience with frontend tools like Babel, Vite, Webpack, NPM, and Yarn.
• Familiarity with REST APIs and collaboration with backend engineers.
• Knowledge of modern authorization mechanisms such as JWT.
• Strong UI/UX sense and ability to build clean, engaging interfaces.
• Startup mindset with ownership and accountability.
• Strong CS fundamentals.

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

Frontend architecture

Performance optimization

Communication

CS fundamentals

Education

Bachelor's degree in Computer Science or related field

Tools

Babel

Vite

Webpack

NPM

Yarn

Job description

LangChain is seeking an experienced frontend engineer to advance LangSmith, our enterprise platform for LLM observability, testing, and debugging. This in-person role covers a range of sites including San Francisco, New York, and Boston, with ownership of high-quality UI features.

You will develop user-facing features, build reusable components, and translate designs into code while optimizing performance and collaborating with cross-functional teams to deliver exceptional user experiences.