Amazon Lab126 interview questions

After OA, I first scheduled an interview with HR, but she didn't show up and didn't reply email at all. At the same time, I already had an interview booked with the hiring manager. HM didn't turn on camera. Questions he asked seemed randomly pulled from a list without much focus on my own experience. Looks like he didn't care what I answered either.

I had three rounds in total with three different engineers. They asked some standard interview questions like stress-strain curve, cantilever beam, and then some unique situational ones. Overall, the interview process was pretty challenging.