I applied online and was contacted by a recruiter. Had 2 phone screens followed by an onsite.
Time between recruiter contact and phone screen 1 slot confirmation :: 1 day
Phone screen 1: Behavioral questions to assess cultural fit, previous work experience, basic statistics and SQL
Time between phone screen 1 -> Update on Decision -> scheduling phone screen 2 :: 5 biz days
Phone screen 2: Behavioral questions to assess business acumen
Time between phone screen 2 -> Update on Decision -> Scheduling onsite:: 14 biz days
Onsite interviews: 5 rounds (1 Director and 4 Sr.Business Managers). Interviews were interesting as the questions range from assessing culture fit to previous experience to basic SQL and statistics to solving business cases from the team's business model.
Notes to others who are aiming for a business analyst position at Amazon: Be confident and get ready to answer what you have done in your previous job. Brush up your basic SQL skills (my job description doesn't mention SQL, but I was given basic SQL questions in the interview). It's OKAY not to answer right in in the onsite interviews, your understanding of the question and approach to solving the problem and staying cool are more important. Lastly, be yourself! Good luck!
I was interviewed on Friday. Recruiter called and informed me regarding the offer on Monday morning. Was provided with offer letter later in the afternoon which I happily accepted!