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Senior Frontend Platform Engineer, Design Systems

LangChain

New York, NY · Remote · full time · Senior

$180,000 – $240,000

Listed on LangChain’s own careers site. You apply with them directly — we never stand between you and the employer.

What this role is

This role involves building and maintaining LangChain's component library and design system infrastructure, serving as the foundation for the company's growing product surface. You'll partner with designers and engineers to create scalable, accessible React components and tooling that enable teams to ship faster while maintaining quality standards.

Our summary, not LangChain’s wording. The full posting is on their site.

Skills this role names

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What they ask for

Required

  • Extensive experience building component libraries or design systems
  • Deep knowledge of React, TypeScript, HTML, and CSS
  • Experience collaborating with designers and non-engineering partners
  • Strong attention to detail and passion for accessibility and inclusive design
  • Familiarity with testing UI components and visual regression testing

Nice to have

  • Experience with specific styling approaches like CSS Modules, CSS-in-JS, Tailwind, or Sass
  • Familiarity with design system tooling like Storybook, Chromatic, or tokens pipelines

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