Frontend Platform Engineer, Design Systems

LangChain
San Francisco
Workplace: OnsiteFull timeUSD 170,000 - 195,000 annuallyFunction: DevOps, Cloud & InfrastructureSkills: ["Communication","Collaboration","Problem-solving"]

Design Systems Engineer role focused on building and owning a cohesive component library, with reusable React components, accessibility-first design, and tooling to improve UI quality and build/test workflows across LangChain’s frontend. Collaborate with designers and platform teams to translate design tokens and interaction patterns into scalable UI solutions used by multiple products.

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FursaFursa
LangChain
LangChain
7 months ago

Frontend Platform Engineer, Design Systems

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Source: Company careers pageValidated by: Fursa AI
Last checked: 19 hours agoStatus: Live

Job Summary

Design Systems Engineer role focused on building and owning a cohesive component library, with reusable React components, accessibility-first design, and tooling to improve UI quality and build/test workflows across LangChain’s frontend. Collaborate with designers and platform teams to translate design tokens and interaction patterns into scalable UI solutions used by multiple products.
Location: San Francisco
Workplace: Onsite
Employment Type: Full time
Job Function: DevOps, Cloud & Infrastructure

Key Responsibilities

  • •Build and own LangChain’s component library, designing and implementing reusable, composable React components that are flexible, accessible, and production-ready.
  • •Partner closely with designers to translate design systems, tokens, and interaction patterns into code.
  • •Develop design system tooling and improve workflows around theming, tokens, versioning, testing, and component discovery (e.g., Storybook).
  • •Make architectural decisions that enable accessibility, performance, consistency, and maintainability across LangChain’s UI stack.
  • •Improve UI build and test workflows by optimizing build performance, bundling strategy, and package versioning for the component library.

Pay and Benefits

Salary: USD 170,000 - 195,000 annually
Perks:Health InsuranceDental401kPaid LeaveLife Insurance

Key Requirements

  • •Proficiency with React, TypeScript, HTML, and CSS, and experience building modular, reusable UI components.
  • •Strong knowledge of design systems tooling and theming/workflows (e.g., Storybook, tokens pipelines).
  • •Experience collaborating with designers to translate design systems, tokens, and interaction patterns into code.
  • •Attention to accessibility, performance, consistency, and maintainability across UI stacks.
  • •Familiarity with testing UI components and visual regression testing.
Experience:Design systemsFrontendUIComponent library
Skills:CommunicationCollaborationProblem-solving
Tech Stack:ReactTypeScriptHTMLCSSStorybookChromatic

Company Brief

LangChain
Provides an open-source framework and commercial platform (LangSmith/LangGraph) for building, testing, monitoring, and deploying LLM-powered applications and agentic AI for developers and enterprises.
Industry: Developer Tools
Company Size: Medium (51 to 250 employees)
Revenue: USD 10M to 25M
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series B
Headquarters: San Francisco, United States
Founded: 2022
WebsiteLinkedIn