I applied online. I interviewed at Amazon in May 2013
Interview
After apply on their website, it will take about two weeks to get the online test email. After login with the account they provided you will have 90 minutes to finish 3 problems. After that, you have to finish a test that ask you what you will do under a certain condition, which does not have a time limit.
I applied through a recruiter. The process took 3 days. I interviewed at Amazon (Seattle, WA) in Apr 2013
Interview
Phone interview:
Questions on basic data structures and algorithms. Search and sort. Basic time complexity. Hardest data structure I had to work with was a LinkedList. If you know your stuff you can write code to solve all this on-the-spot. Interviewer was cool. Suggest practicing on Project Euler.
Interview questions [1]
Question 1
Pull a random integer from the range 1, ..., N. Shuffle. Find missing integer, without re-sorting. Solution is to used closed-form sum of first N integers.
I applied through college or university. The process took 3 days. I interviewed at Amazon (Seattle, WA) in Feb 2013
Interview
Coded with a team of 2 other people for around 7 hours to complete a project. The project was to code a sequence of advertisements in the most efficient manner possible given a list of advertisements.