Software Engineer applicants have rated the interview process at Amazon with 3.5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 33% positive. To compare, the company-average is 63.8% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Applied through their website and got a call shortly to set up a phone interview. Went through 2 phone interviews before getting an in-house interview. The phone interviews were an hour long and focused purely on technical programming questions. The in-house interview lasted half a day and I was interviewed by 5 different groups, each lasting approximately 45 minutes.