I was contacted by a recruiter and since I was working already I managed to convince the recruiter to let me bypass the phone screen and go straight to on-site interviews. There were a total of 4 interviews that day from a specific team. The order of interviewers was random but for me it was : my future manager, Director of the team, a senior developer and a PM of another sub-team within that team. I dressed really casually (jeans & Tees) sitting next to a bunch of undergrad in suits. Guys please don't wear suits to tech interviews, not a brogrammer move. The process was pretty tiring and my first 2 interviews were pretty good, 3rd one was ok and by the 4th one my brain pretty much decided to stop function at certain points. Also, the questions were mostly technical and actually somehow related to the kind of problem the team was solving so it gave me a pretty good idea of stuff I'll potentially work on. The interviewers were definitely smart and nice. About half of the questions involves coding. My strongest lang was Java but I coded in JavaScript cause it's fast to cook up something, other than using verbose Java and stuff. They seem to appreciate the reasoning so make sure you know what ur doing/talking about. The offer comes the next day (around 27 hours later to be exact). They move fast cause Amazon is hiring a lot.