One round, two forty-five minute behavioral interviews with two people. Questions were based on the Amazon Leadership Principles and they asked follow-up questions. Not many questions regarding the actual position.
Interview questions [1]
Question 1
How have you demonstrated [insert leadership principle]?
I interviewed at Amazon Web Services (Santa Clara, CA)
Interview
Lots of STAR method questions and questions about your experiences that required analytical thinking and short-ish answers. As long as you prepare you should be in a position to do well in the interview process for this company.