Amazon Non Software Development Engineer interview questions

I have applied to their jobs site. They have contacted me for a technical test. The test was focused on algorithms, and had no human interviewer, just an online test. They required to solve two problems in 60 minutes. They focus on performances, to keep cyclomatic complexity as low as possible. A minor detail: note that you have to submit the two solutions separately. The user interface could lead to think that there is just one button for submit both the solutions.

It started with HR phone screen, then a technical phone screen, and finally on-site interview. The process goes very smoothly and basically you could know the result in a short time. Very efficient and nothing to complain about. However, the on-site interview is also very fast-paced, which means if you don't complete the questions in time, you wouldn't get a chance to ask the interviewer any questions. Some interviewers are pretty good but some are just okay and might make you feel that he doesn't care what you're talking about ;).