When she’s not busy developing the latest and greatest on the Squarespace platform, she has another passion: Olympic weightlifting. You may not know exactly what this entails, and you may be wondering if Sara is an Olympian; it’s a common point of confusion that she was quick to address.

As part of our ongoing efforts to improve user experience on the Squarespace platform, we added a feature to display thumbnail previews of all of your account’s sites in the account picker. Since we didn’t have any existing functionality around screenshot generation, this was something we had to build from scratch. In this post we’ll talk about the screenshots microservice solution we came up with.

Every other Wednesday, the Frontend Engineers at Squarespace convene in a large room to hash out these issues. We discuss and shop around new technologies and patterns. We decide which haircuts to give our yaks, and what shade of gray looks best on our bike shed.

Automated UI tests are a crucial part of our QA process. Before going to production, we run a set of smoke tests which navigate around parts of the UI, recording screenshots and comparing them against a set of golden images. If a significant mismatch occurs, we consider the test failed and halt deploys while we investigate the issue.

Data scientists, business operations, finance, and marketing teams are all working off our curated data stores to make critical decisions about the direction of the business, and there will inevitably come a time when somebody looks at a report and asks: "How do we know these numbers are correct?"

As a DIY platform, the approach Squarespace takes with taxes is to let merchants enter in the rates they need to collect, then provide a calculator that can apply those rates to a shopping cart. Squarespace’s role is thus not to know the exact details of a given tax system, but rather, to provide a tool that can effectively model the most common ones.