Senior Frontend Platform Engineer, Design Systems
Core
Build, own, and evolve LangChain's component library to serve as the scalable UI foundation for frontend teams shipping AI agents.
Role type
Senior Frontend Platform Engineer (Design Systems)
Builds
Reusable, composable React components and design system tooling for LangChain's products
Domain
AI infrastructure / Developer tools
Deliverable
production ML models | product features
Required skills
React, TypeScript, HTML, CSS, component library architecture, accessibility, design system tooling (Storybook, Chromatic), build optimization, versioning
Preferred skills
Visual regression testing, theming pipelines, token management
Technologies
React, TypeScript, Storybook, Chromatic, CSS Modules, CSS-in-JS, Tailwind, Sass
Responsibilities
Design and implement reusable, accessible React components; Partner with designers to translate design tokens and patterns into code; Build reliable UI quality systems; Develop design system tooling for theming, versioning, and testing; Optimize build performance and bundling strategy; Maintain testing and dependency management workflows
Seniority
Senior, hands-on IC
