Tech: AngularJS, Node, MySQL, Mongo, Redis
I was part of the full-stack team that worked on CrossBrowserTesting from SmartBear. CBT allows its users to test their sites and web apps against almost any browser and operating system you can imagine. The CBT toolkit includes manual testing, a Selenium grid, automated Screenshots (including cross-browser full-page capture), and Record & Replay, a code-less automation test tool.