I applied through a recruiter. The process took 2 weeks. I interviewed at Amazon in Dec 2013
Interview
In December 2013. It is a 45 minutes phone interview. Technique in nature. First asked me why I choose Amazon. Then according to my resume, ask me about machine learning related algorithm. After that, during next 20 minutes, asked me about the algorithm and data structure. Finally, the interviewer let me ask him questions.
Interview questions [1]
Question 1
Given a number, how to find a closest number in a series of floating point data.