I have no idea whats going with amazon, had an interview for DNS expert, (I ran the backbone DNS for the largest telecom in the world), said I wasnt experience

I have no idea whats going with amazon, had an interview for DNS expert, (I ran the backbone DNS for the largest telecom in the world), said I wasnt experience enough. Tried to get a senior linux administration role, said I didnt know linux. After I passed their linux tests, and started multiple ISP's running linux, and been a linux/solaris admin for 20+ years. Their interview process is crazy.