I applied online. The process took 1 day. I interviewed at Amazon (New York, NY) in Apr 2016
Interview
Talk into details about my most recent project and also asked some basic ML concept. Then let me describe how to solve a specific NLP problem. Lastly give a medium level DP algorithm problem.
Interview questions [1]
Question 1
What's the difference between MLE and MAP inference?
The process took 2 weeks. I interviewed at Amazon (Call, NC) in Feb 2016
Interview
I had two phone interviews. I was asked questions on basic Machine learning, my projects and one average difficulty coding question.
I was also asked a non-technical question where I had to give a real life example of how I handled the situation.
Interview questions [1]
Question 1
They asked questions on projects. "why did you use a certain machine learning algorithms, and why not another one?
In total, there are only two phone interviews. One is about statistical theory, another one is about machine learning, coding, algorithm and business scenario questions. They provide a coding window for you to type in real time. No onsite interviews. HR is very nice.