Frontend Engineer - React Remote

About Us

Since 2013, we've been building a CRM that gets out of our customers’ way and helps teams sell more, faster. No manual data entry, just communication-first sales software designed to help SMBs succeed and scale.

We're bootstrapped and profitable which means we answer to our customers and play by our own rules. We're proud of our ~120 person, 100% remote team of thoughtful individuals who prioritize taking ownership and making a meaningful impact.

Our Engineering team has grown to 50+ members across Frontend, Backend, and Infrastructure. We prioritize craftsmanship and collaboration. We’re committed to shipping the things that matter to our customers in the most thoughtful, scalable, and innovative ways possible.

Our app’s frontend is a single-page Type Script web app mostly written in React (originally built with Backbone.js). Our mobile app is built using React Native. We bundle with Vite and target only modern browsers. We test with Vitest, React Testing Library, Playwright, and Chromatic for VRT. Our UI updates in near real-time, is styled via CSS modules, and takes advantage of fun technologies like Websockets and WebRTC.

We care about performance (e.g. route-based code splitting or skeleton UI), maintainability, and testability of our frontend code. We sweat the UI/UX details and work collaboratively with the Product team throughout the design process. This means diving into lo-fi wireframes, and communicating continuously when those ideas are brought to life using Figma and code. We’ve built our own design system, for which we have created an extensive Storybook to explore and test.

Our frontend app is built on top of our REST API & GraphQL endpoints. Our backend tech stack consists of Python/Flask, MongoDB, Postgres, Elasticsearch, and Redis. We run our services in Docker on AWS.

We ❤️ open sourcing our code and ideas on our Git Hub and on The Making of Close, our behind-the-scenes Product & Engineering blog. Check our projects such as react-custom-scroller, use-infinite-scroll, use-abortable-effect, smart-tooltip-delay or insights from our day-to-day work on such as Under the Hood:
Developing Close's AI-Powered Call Assistant, Cutting our Lead page LCP by half, and Highlights From a Complex Downshift.js Refactor.

You would be joining one of our six cross-functional product development teams. These include the CRM, Growth, Conversations, Messaging & Scheduling, Automations & Integrations and Data Insights teams. You will be working with other Frontend Engineers as well as Backend Engineers, Product Managers, Designers and other functional teams here at Close to drive initiatives across the finish line.

Come help us with projects like...

• Conceiving, designing, building, and launching new user-facing features
• Implementing new AI features to turbocharge our customers’ daily tasks
• Working with Twilio's API, Web Sockets, and WebRTC to improve our calling and SMS features
• Building user-facing analytics features that provide actionable insights based on sales activity data
• Enhancing our web app with real-time updates powered by GraphQL Subscriptions
• Improving real-time collaboration user experience
• Leveraging the latest AI LLMs from providers like OpenAI, Claude Code, and AssemblyAI
• Expanding our frontend GraphQL usage
• Extending our React component library

We're looking for an experienced full-time Frontend Software Engineer to join our engineering team. Someone who has a solid understanding of web technologies and wants to help design, implement, and launch major user-facing features.

You’re comfortable working in a fast-paced environment with a small and talented team where you're supported in your efforts to grow professionally. You are able to manage your time well, communicate effectively and collaborate in a fully distributed team.

• Senior 1 & 2 level candidates should have 5+ years experience building modern frontend single page applications in JavaScript, HTML, and CSS, with at least 3 years of that experience using React.
• Staff level candidates should have 8+ years of experience.
• You should have significant experience designing, debugging, and optimizing frontend…