I applied online. The process took 2 months. I interviewed at Amazon (Seattle, WA) in Feb 2017
Interview
phone screen by hiring manager, and then technical phone screen, and then onsite interview with 6 persons. asking DS/ML questions, SQL questions, case study, statistics questions. the process was clear but waiting to hear back took like 4 weeks after onsite.
There are three rounds in total. The process begins with a coding round, followed by the main interview loop, where you will meet the team and discuss technical skills, experience, and fit.
First round is fun, second round, which is also the final round involved 5 sessions, with different focus. For some sessions, not be able to present my story completely, time was tight, and interviewers were rushing.
4 rounds:
ML breadth + Depth: Conceptual knowledge about ML and work experience discussion
Problem solving: Leetcode (Medium) + Basic ML concepts
Design + LP round: Use case discussion + Behavioural questions
Bar Raiser - LP round: Behavioural questions - Interviewer was non technical