LangChain · 1 day ago
Frontend Platform Engineer, Design Systems
United States
Full-time
Remote
Mid, Senior Level
$170K/yr - $195K/yrLangChain is a company dedicated to making intelligent agents ubiquitous through their agent engineering platform and open source frameworks. They are seeking a Frontend Platform Engineer specializing in Design Systems to build and evolve their component library, ensuring a cohesive and high-quality UI foundation for their products.
Agentic AIArtificial Intelligence (AI)DatabaseDeveloper APIsGenerative AI
Responsibilities
Build and own LangChain’s component library
Design and implement 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 thoughtful architectural decisions that enable accessibility, performance, consistency, and maintainability across LangChain’s UI stack
Optimize build performance, bundling strategy, and package versioning for the component library
Maintain tooling for testing, dependency management of the UI app
Qualification
Required
Strong experience building modular, composable, and well-documented component libraries and/or design systems
Deep knowledge of React, TypeScript, HTML, and CSS, familiarity with: styling approaches (CSS Modules, CSS-in-JS, Tailwind, Sass, etc.) and design system toolings (Storybook, Chromatic, tokens pipelines, etc.)
Experience collaborating closely with designers and non-engineering partners
Strong attention to detail and a high bar for craft and genuine passion for accessibility and inclusive design
Familiarity with testing UI components and visual regression testing
Benefits
Health and dental coverage
Flexible vacation
A 401(k) plan
Life insurance
Company
LangChain
LangChain is a platform that provides open-source frameworks and tools for engineering and deploying language model agents.
Founded in 2022
51-200 employees
H1B Sponsorship
LangChain has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (6)
Funding
Current Stage
Growth StageTotal Funding
$160MKey Investors
IVPSequoia CapitalBenchmark
2025-10-20Series B· $125M
2024-02-15Series A· $25M
2023-03-21Seed· $10M
Leadership Team
Harrison Chase
Co-Founder and CEO
Ankush Gola
Co-Founder
Recent News
Dynamic Business
2026-01-20
2025-12-11
2025-12-05
Company data provided by crunchbase