高级前端平台工程师，设计系统
Senior Frontend Platform Engineer, Design Systems
关于我们
在LangChain，我们的使命是让智能代理无处不在。我们构建了现实世界中代理工程的基础，帮助开发者从原型过渡到可信赖的生产级AI代理。我们最初是广泛采用的开源工具，现已发展为一个平台，用于大规模构建、评估、部署和运营代理。
在IVP、Sequoia、Benchmark、CapitalG和Sapphire Ventures的B轮融资中筹集了1.25亿美元，我们正处于持续开发新产品、增长加速的阶段，所有团队成员都能对我们的产品和协作方式产生重要影响。LangChain是一个你可以塑造这项技术如何在现实世界中呈现的地方。
如今，我们的平台包括LangSmith（可观测性、评估、部署、车队和沙盒）、我们的开源框架（LangChain、LangGraph和Deep Agents），以及新推出的LangSmith Engine，用于自主代理改进。我们有超过1亿次每月的开源下载量，6000多名活跃的LangSmith客户，以及5家财富100强企业使用LangSmith进行生产（占财富500强企业的35%），包括Klarna、Clay、Coinbase、Workday、Lyft、Cloudflare、Harvey、Rippling、Vanta、LinkedIn、Monday.com、Nvidia和Bridgewater的团队。
关于该职位：
该职位可以远程在美国工作，理想地点为旧金山、纽约或波士顿。
LangChain正在构建支持下一代AI应用的基础设施。我们的工具被数千名开发者和团队使用，用于构建、调试和发布生产级LLM驱动的产品。
随着我们的产品范围不断扩大，对统一、可扩展且高质量的UI基础的需求也在增加。这就是设计系统的作用。我们正在寻找一名设计系统工程师，帮助构建、维护并推动LangChain组件库的发展——这是前端团队快速交付而不牺牲质量、可访问性或一致性的基础。
该职位位于设计与工程的交汇点。你将与设计师、产品工程师和平台团队紧密合作，将设计意图转化为可扩展的、可重用的组件和工具。
你将拥有主导权和影响力，你的工作将直接被LangChain的所有产品所使用。
你将负责：
- 构建LangChain的组件库
- 设计并实现可重用、可组合的React组件，这些组件能够满足不同场景需求，同时保持一致性与高性能。
查看英文原文
ABOUT US
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater.
ABOUT THE ROLE:
This role can be based remotely in the U.S. Ideally SF, NYC, or Boston.
LangChain is building the infrastructure that powers the next generation of AI applications. Our tools are used by thousands of developers and teams to build, debug, and ship production-grade LLM-powered products.
As our product surface area grows, so does the need for a cohesive, scalable, and high-quality UI foundation. That’s where Design Systems comes in. We’re looking for a Design Systems Engineer to help build, own, and evolve LangChain’s component library—the foundation that our frontend teams rely on to ship fast without sacrificing quality, accessibility, or consistency.
This role sits at the intersection of Design and Engineering. You’ll work closely with designers, product engineers, and platform teams to turn design intent into robust, reusable components and tooling that scale across the product.
You’ll have ownership, influence, and your work will be directly consumed across LangChain’s products.
WHAT YOU'LL DO:
- Build out 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
- Build reliable UI quality systems
- 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
- Improve UI build and test workflows
- Optimize build performance, bundling strategy, and package versioning for the component library
- Maintain tooling for testing, dependency management of the UI app
WHAT YOU'LL BRING:
- Extensive 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
Annual salary range: $180,000 - $240,000
Compensation Philosophy:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
BENEFITS
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.