I applied online. The process took 4 weeks. I interviewed at Amazon (Seattle, WA) in Feb 2014
Interview
The interview consisted of 2 phone screens followed by a day onsite in Seattle. All people were smart and nice to speak to. They let me complete my thoughts (on cases) slightly nudging where needed. I enjoyed knowing more the work there.
Most of the interviews were either case questions with multiple layers or 'tell me about' questions. As long as you know the leadership principles and prepare you answers to reflect to those you should be good
Interview questions [1]
Question 1
how and when do we know we achieved least possible shipping costs?