I am a new grad looking for entry level position. Contacted by a recruiter through Linkedin, and set up a phone interview a week later. Pretty simple screen coding question, but a little ambiguous, which required you to make some assumptions. Onsite two weeks later. 5 rounds with 45 minutes each: two rounds with simple coding questions, three rounds with not too difficult OOD/system design questions. There were 3-5 quick behavior questions at the beginning of each round, which were beyond my expectations. My suggestion is: if you really want to get the job, get familiar with the Amazon culture. The 14 principles will be helpful for behavior questions. Got offer one week later.