Amazon

The first stage was a phone screening interview, which I passed. The next stage involved five one-hour interviews with at least five people. The questions were fairly simple. I solved all of them, even providing multiple answers for some. However

The whole process took three months and involved multiple interviews. It wasn't really focused on the technical side, but more on HR aspects. I was declined in the end and was honestly pissed, because I felt like I had wasted my time.

Very tech-oriented and fun. The interviewer was very knowledgeable and helpful. Even if I could not get an answer right, they worked with me to push towards the correct answers. I learned a lot from it.