Amazon

I applied online. The process took 4 weeks. I cleared OA, then got scheduled for loop interviews which are 3 in a row with 10 mins break. The interviewers were sounding very rude, like they were looking for reasons to reject me. Even after answering

Phone screen, followed by a coding challenge. The first question was easy; the second was harder, and not all my test cases passed quickly enough in Python. There was also a system design component, with multiple-choice answer options for proposed

There was a very difficult coding section. All I can say is that you should be prepared to answer some difficult optimization questions and code the solutions in real time.