Close

Close is a bootstrapped, profitable, 100% remote, ~70 person team of thoughtful individuals who value autonomy and impact. We’re eager to make a product our customers fall in love with over and over again.

We ❤️ startups & SMBs. Since 2013, we’ve been building a CRM that focuses on better communication, without the hassle of manual data entry or complex UI. Our goal: double the productivity of every sales rep.

Our app’s frontend is a single-page JavaScript/TypeScript web app mostly written in React. Our mobile app is built using React Native. Our backend tech stack consists of Python/Flask, MongoDB, Postgres, Elasticsearch, and Redis, and communicates with clients via our REST API & GraphQL endpoints. We run our services in Docker on AWS.

We care about performance, maintainability, and testability of our code. Writing unit/integration tests is embedded into our engineering culture. We test more complex features end-to-end via Cypress. We also house lists of manual test steps to follow for testing critical features like calling and composing emails. Our focus is on testing actual user behavior, leveraging the Testing Library approach.

Our product development process is inspired by Shape Up. We sweat the UI/UX details and work collaboratively with the Product team throughout the design process. We think about testing in the technical specification phase and we continuously spend time assuring we’re shipping a high-quality product.

We open source our code and ideas on our GitHub and on The Making of Close, our behind-the-scenes Product & Engineering blog. Check out our projects like TaskTiger and use-infinite-scroll or insights from our day-to-day work such as Rendering untrusted HTML email, safely, How We Improved Reliability Of Our WebSocket Connections, and A Case Study in"Reactizing" a Complex Backbone View.