tl;dr - Unprofessionalism. A company who's mantra is "Frugality" and their hiring process is beyond broken I started the process in October following an Online Test. The Online Test was easy so I attempted 3 out 5 of the sections (leaving aside Database and Big Data). 4 days later I am told that I have made it to the Phone Interview round. This is where the unprofessionalism began! The person supposed to call me was late and he did not even book a meeting room for our call. Yes - he did not book a meeting room where we could chat uninterrupted for that 1-hour long phone call. Someone walked in while I was answering his question and he had to just drop the call right there. Wow! That was a first for me. 5 minutes later the interviewer calls me from his cell phone! Apologizes for what happened and then resume the discussion a bit more and then we're done. A week later I come to know that I've been selected for an onsite interview and that I would be approached by another recruiter for scheduling the onsite program. Then immediately two days later the recruiter calls me up and informs me that the position that I have been interviewing for, has closed. Probably because they found someone or they stopped hiring. The funniest part is: The hiring was stopped in Office B whereas my first preference was Office A!! Now this was interesting - the recruiter goes back to the emails and finds that there has been a misunderstanding and that I actually applied for Office A, not Office B. Hiring has been stopped in all offices and I wait the whole Nov and Dec. I was approached once again in Jan for 2 different positions (including the one I interviewed for earlier). I was sent an online coding challenge which I cleared. Now comes the onsite interview. I am once again given Office B when I have clearly mentioned earlier my choice as Office A. I couldn't for the life of me understand what's going on. I comply to their requests and give the onsite interview at Office B in Feb. 2-3 days later I am approached by the HR that they want to extend an offer. I was more than excited but it was short lived because they messed up the salary this time. They couldn't even match the current salary I had but they wanted me to join. I mentioned about my counter offer from another company which was more than my current. No success. They came back with the same offer. During the whole process I was also reached by another team from Amazon for Systems Development Engineer. They told me that I could fit into the other team as well - I agreed. Accordingly a quick phone interview was scheduled and I never ever heard from the HR...even after repeated emails. I had no other option but decline their offer. Its a shame on how they reached out for interviews and wasted my valuable time. The stories you read on Glassdoor about bad interviews are indeed true - I experienced them first hand! I wish I never interviewed for Amazon.

It was a 4 round loop. The first two rounds focused on networking and troubleshooting, plus questions about your domain. The last two rounds are just answering questions using leadership principles in STAR format.