高级前端工程师 – 增长
Senior Frontend Engineer – Growth
## 关于我们
自2013年以来，我们一直在打造一款不会阻碍你工作的CRM，帮助你的团队更快地销售更多。现在，我们正在将AI融入每一个环节，让Close处理繁杂的工作，而你的团队专注于销售。无需手动输入数据，无需10步流程。只需以沟通为核心、由AI驱动的销售软件，帮助你成功并实现扩展。
我们是自筹资金且盈利的公司，这意味着我们只对客户负责，按自己的规则行事。我们自豪于拥有120人的100%远程团队，专注于打造Close，让没有小企业因为无法掌握销售而失败。
## 我们的工具栈
我们的前端是一个使用React构建的单页TypeScript网页应用。我们使用Vite进行打包，并仅针对现代浏览器。我们使用Vitest、React Testing Library、Playwright和Chromatic进行测试。我们的UI通过WebSockets和WebRTC实现实时更新，使用CSS模块进行样式设计，并通过基于路由的代码分割和骨架UI进行性能优化。我们自己构建了设计系统，并在详尽的Storybook中进行了文档说明。
我们注重UI/UX细节，并在整个设计过程中与产品团队协作——从低保真线框图到Figma，再到代码。我们的前端建立在REST API和GraphQL端点之上，后端采用Python/Flask/FastAPI、MongoDB、Postgres和Elasticsearch技术栈，运行在AWS上。
我们热爱在[我们的GitHub](https://github.com/closeio)和[The Making of Close](https://making.close.com/)（我们的产品与工程幕后博客）上开源我们的代码和想法。查看我们的项目如[react-custom-scroller](https://making.close.com/posts/introducting-react-custom-scroller-component)、[use-infinite-scroll](https://making.close.com/posts/introducting-use-infinite-scroll-react-hook)、[use-abortable-effect](https://making.close.com/posts/introducting-use-abortable-effect-react-hook)和[smart-tooltip-delay](https://making.close.com/posts/introducing-smart-tooltip-delay-library)，或者我们日常工作的见解如[深入解析：开发Close的AI语音助手](https://making.close.com/posts/developing-the-call-assistant)、[将我们的线索页面LCP减少一半](https://making.close.com/posts/cutting-our-lead-page-lcp-by-half)和[复杂Downshift.js重构的亮点](https://making.close.com/posts/highlights-from-a-complex-downshift-js-refactor/)。
AI既是我们的构建方式，也是我们交付的产品，这已经改变了工程的面貌。这
查看英文原文
## About Us
Since 2013, we’ve been building a CRM that gets out of your way and helps your team sell more, faster. Now we’re building AI into every part of it, so Close does the busywork and your team does the selling. No manual data entry, no 10-click workflows. Just communication-first, AI-powered sales software designed to help you succeed and scale.
We're bootstrapped and profitable which means we answer to our customers and play by our rules. We're proud of our 120-person, 100% remote team, focused on building Close so that no small, scaling business fails because it can't figure out sales.
## Our Stack
Our frontend is a single-page TypeScript web app built in React. We bundle with Vite and target modern browsers only. We test with Vitest, React Testing Library, Playwright, and Chromatic for visual regression. Our UI updates in near real-time using WebSockets and WebRTC, is styled via CSS modules, and is performance-tuned with route-based code splitting and skeleton UI. We've built our own design system, documented in an extensive Storybook.
We sweat the UI/UX details and work collaboratively with Product throughout the design process - from lo-fi wireframes through Figma and into code. Our frontend is built on top of our REST API and GraphQL endpoints, backed by a Python/Flask/FastAPI, MongoDB, Postgres and Elasticsearch stack running on AWS.
We love open sourcing our code and ideas on [our GitHub](https://github.com/closeio) and on [The Making of Close](https://making.close.com/), our behind-the-scenes Product & Engineering blog. Check our projects such as [react-custom-scroller](https://making.close.com/posts/introducting-react-custom-scroller-component), [use-infinite-scroll](https://making.close.com/posts/introducting-use-infinite-scroll-react-hook), [use-abortable-effect](https://making.close.com/posts/introducting-use-abortable-effect-react-hook), and [smart-tooltip-delay](https://making.close.com/posts/introducing-smart-tooltip-delay-library) or insights from our day-to-day work like [Under the Hood: Developing Close's AI-Powered Call Assistant](https://making.close.com/posts/developing-the-call-assistant), [Cutting our Lead page LCP by half](https://making.close.com/posts/cutting-our-lead-page-lcp-by-half), and [Highlights From a Complex Downshift.js Refactor](https://making.close.com/posts/highlights-from-a-complex-downshift-js-refactor/).
AI is both how we build and what we ship, and that's reshaped what engineering looks like. This is a transformation we’re embracing and find deeply exciting.
## About the Role
The Growth team owns the surfaces that turn someone who just signed up into a paying customer who sticks around — onboarding, activation, billing and checkout. The operating mode is simple: find the fastest path to learning, ship it, then standardize and clean up. The Growth team ships in weeks what other teams might take months to do.
Two of our exciting projects right now:
- **Agent-forward experience.** We're exploring how agents and AI can make the experience better for our customers and demonstrate the value of Close faster. Our focus is helping users get real value from the product, not just automating on their behalf.
- **Creating data from unstructured sources.** We're building ways to turn the information customers already have, like their inbox, into a working CRM, so they can skip the manual data entry and see value from Close faster.
_One thing to know up front: we do move people between teams as the work shifts. Most engineers here end up on more than one team over their time at Close._
## You are
- **A seasoned frontend engineer.** React is our bread and butter, but perhaps you've worked across Vue, Svelte, or Solid. You pick the right tool for the problem rather than retreating to what you know. You've seen a variety of problems, can collaborate and self-direct.
- **Fluent in experimentation.** You understand what data points to capture in an experiment, what a funnel looks like, and how to design a feature so it produces meaningful data — not just ship it and hope. This is the core of the role.
- **Experienced with B2B experiment structure.** A strong bonus: you've worked in Amplitude on the implementation side, not just the technical configuration side.
- **Building AI-powered interfaces.** You've shipped LLM-backed features for real users and have an opinion on where they're trustworthy, where they fall over, and how to make them feel reliable. You know how to design for streamed responses, uncertain states, and agent-driven UIs.
- **Working with AI daily.** You use AI tools in your own workflow to ship faster, write tighter code, and reason about unfamiliar parts of the codebase. We fund the use of AI tools (Claude Code, Codex, and other best-in-class developer tools) and treat learning and experimentation as part of the work.
- **A builder first.** You'd rather get the first iteration of a feature in front of fifty customers than spend three weeks fretting over a perfect PR. You ship — and you're comfortable standardizing and cleaning up after the learning lands.
### You will
- **Build agent-forward onboarding.** An agent that teaches by doing: clicking around, highlighting, demonstrating the app while it talks to the user. You'll own the UI layer that makes an agent feel like a trainer instead of a chat window — and help find the balance between the agent doing everything and the user learning enough to make Close's workflow their own.
- **Turn an inbox into a CRM.** Build the experience around our unstructured-data pipeline: a user connects their email, and we surface detected deals, contacts, and a full book of business. Your job is making that moment feel like magic — and making it trustworthy enough to act on.
- **Design experiments, not just features.** Decide what to instrument, define the funnel, and structure metrics so a B2B reality (org-level conversion, user-level behavior) still yields clean answers. You'll own this in Amplitude end to end.
- **Work across the whole app.** Growth doesn't stay in its lane — onboarding, activation, billing, import, and whatever surface the next experiment needs. The Growth team experiments touch every aspect of the product.
- **Move at learning speed.** Fastest path to insight first, then standardize and clean up. You'll ship in weeks what elsewhere takes months, and help decide which prototypes deserve to become permanent.
- **Have ownership and autonomy.** The team is relatively new. How Growth frontend engineering works at Close is, in part, yours to shape.
**Tech you'll touch:** TypeScript, React, Vite, Amplitude, CSS Modules, Storybook, Playwright, WebSockets — plus the agent stack behind Chloe.
## Benefits
- Compensation: Competitive pay plus an organization-wide goal-based bonus
- Paid Time Off: ~5 weeks of PTO to start. Plus a 1-week all-company Winter Holiday Break and paid US holidays. You'll earn 2 extra days for every year you're with Close.
- 80% Work Option: Work with your manager to choose between a standard 5-day week or a 4-day week at 80% pay
- Parental Leave: Paid leave for primary and secondary caregivers
- Sabbatical: A 1-month paid sabbatical every 5 years with the team
- Healthcare (US residents): Two medical plans with Close covering 99% of your premium, plus Dental, Vision, HSA, FSA, and company-paid Long-Term Disability
- 401k (US residents): We match your contributions up to 6%, vested immediately
## Our Values
Build a house you want to live in - Examine long-term thinking and action
No BS - Practice transparency and honesty, especially when it’s hard
Invest in each other - Build successful relationships with your coworkers and customers
Discipline equals freedom - Keep your word to yourself and others
Strive for greatness - Constantly challenge yourself and others
## Learn More
Listen to our CEO and Founder, Steli Efti, tell the story of Close’s journey in the [$0-30m Blueprint](https://www.close.com/blueprint).
Watch [our culture video](https://www.youtube.com/watch?v=maXKi1GN2MI) from our 2023 team retreat in Milan. Every year our entire team gathers in person to build connection, foster cross-functional collaboration, and have fun. In 2027, we're headed to Dusseldorf, Germany!
Explore our product. Check out a [demo](https://www.close.com/demo-site)!
## Our Hiring Process
We ask a few role-specific questions as part of our application process. These questions are designed to help us learn more about you from the start, so please answer each one thoughtfully. We see this as an opportunity to get to know you beyond your resume.
We use AI tools daily at Close and expect candidates to do the same. In evaluating your application, we aim to get a sense for _you_ - the way you think, how you communicate, the work you've done. Applications that read as fully AI-generated will not be considered.
Regardless of fit, you can expect to hear back from our team with an update on the status of your candidacy.
If you progress to the interview process, you'll receive a full outline of the role-specific steps in your first touchpoint with us. We do our best to make the hiring process clear and human.