I applied online. The process took 1+ week. I interviewed at Amazon (Seattle, WA) in Mar 2016
Interview
2 phone interviews were held over a 2 week period. The engineers were courteous and maybe a little arrogant at times since they were holding all of the cards.
Interview questions [1]
Question 1
Example: Are TCP sequence numbers random or do they start at the same number. many other questions were asked in two one hour phone interviews. Study and memorize the RFC's pertaining to BGP, MPBGP, TCP, HTTP, HTTPS, MPLS, OSPF, ISIS, and you will do just fine.