First, a 30-minute interview on the phone with a developer from the team. Went well. Second, an on-site interview with the developers and managers from two teams working on the same project. All goes well, some algorithm questions, some design questions... I think I hit it off nicely with both managers. And then, there's the "culture guy". How well you did during the previous five hours is irrelevant. The culture guy will ask you a "culture question" and then will keep repeating "what if that doesn't work" all the while giving you the unflinching death stare. What are you supposed to do? Heck if I know. I can merely suggest to not crack a joke during that time. I did. I wasn't seriously thinking what I said. I thought it was bleedingly obvious that I wasn't serious but I think that joke destroy my chance right then and there. Oops! Oh, but for extra brownie points, think of something Amazon could do better. Something real.