This is the third month in a row I've seen this posting. I finally worked up the courage to apply and I got shot down immediately. The posting reads to be liberal with the experience levels sought and how much a candidate is willing to learn, so I figured if you're still looking then I would surely have a shot; I have 10 years of C# experience and experience with TypeScript/Angular2 in an enterprise application. I think I was judged purely off the fact that I don't have any open-source contributions. As a family-man with a full-time commitment to my work, there's not enough time to contribute to OS projects, i'm sorry. If you're excluding people just for the lack of public contributions, then you're missing out on a lot of great experienced talent.