I was contacted by a recruiter who was interested in my background. I informed her that I was interested in Amazon but I was already in the interview process with a few other companies and that I expected an offer soon. She fast-tracked me to the Online Assessment that same day. The OA is a mixture of behavioral and technical questions. They put you through a scenario where you need to read and respond to emails appropriately. Then there is a tech screening. It has a very wide focus for this position in AWS. They ask programming, web dev, hardware, security, networking, architecture, and troubleshooting type of questions. I guess I scored yellow on the OA because I moved on to a 1-hour tech screening. Since I was on a fast track I didn't have time to check glassdoor interview questions. A lot of the questions are straight from these reviews. I was astonished at the level of debt and breadth they expect. It goes really deep into all of the areas I mentioned above. I could answer about 60% of the questions based on my experience. I had to be honest with the interviewer and tell him I did not know anything about a few topics. I can't really see them expecting you to be an expert in all of the topics they ask. I think they're just trying to get an idea of your depth in each area. To be honest, I don't think even cramming glassdoor questions would have helped me. The recruiter and interviewers were very nice. There was also a shadow on my tech interview who must have been new but was on the team I was applying for. He was able to answer direct questions about the work. The interviewer didn't act negatively when I didn't know an answer. He kept the conversation flowing very well. It was a difficult but great experience.