I'm worried about the quality. I'm sure it is a product forged from concerted development and testing efforts. Testing of a modern, long-term software becomes more difficult from release to release because of growing possibilities require more robust testing, Regression testing makes manual testers as robots because of need to execute similar actions again and again, from release to release. I have expertise in auto-tests development for web, mobile and, a little, desktop applications. The technologies I am familiar with are mentioned inside skills section.