I was referred by my ex-colleague. After an initial phone screen which was supposed to be technical, turned out to be half technical and half project management. I was fairly detailed with some interesting situational questions. I didnt hear after the interview for a few days and was a little anxious. When I inquired, the HR sent me a note to schedule the onsite interview. I was expecting a second round of phone screen. The onsite loop was good mix of technical and project management with dev managers and TPMs. Lunch with manager went well although I must say, explaining a system landscape and technical architecture over food is quite tricky. The final interview was with a bar raiser and the key question asked was, "tell me about a time when you have taken something completely outside your comfort zone". The folks are pretty quick in amazon and I got a call in 2 days to discuss the opportunity and negotiate. In general, I would say, prepare well and structure your thoughts on what you want to speak. Dont need to speak about dozens of projects you have done, just focus on a few but explain in detail. Folks in Amazon love to get into the nth degree of detail. Even if you feel some of the situation questions are impossible, dont get frustrated. The key intent is to understand how you deal with ambiguous and complex situations. You dont have to have answers for everything, its the thought process that matters. A lot of folks dont make the T (technical mark) and while the questions are not dev level but you should be able to talk architecture and challenge a dev. Just remember, TPM is the big picture guy in Amazon and is the bridge between devs, dev managers, product managers and across teams. They have to traverse up and down and side ways so breadth is important but should have the ability to dive deep as well.