I applied through a recruiter. The process took 2 weeks. I interviewed at Amazon in May 2015
Interview
The hr people are nice and efficient. It is a very small group of Amazon made up by a group of SDEs who think themselves know Statistics. Their knowledge on Statistics come purely from experience so it is very difficult to explain to them using the terms I learned in college. They think it is me that do not understand Statistics but it is actually them. They obvious only want computer science people because they themselves are. But what they really need is real Statisticians who have a formal education from college on Statistics.
Interview questions [1]
Question 1
They asked a lot of details and they do have a certain answer that they want to hear.
I applied online. The process took 1 week. I interviewed at Amazon
Interview
A 45 mins' phone call from one engineer asking about my research and several machine learning questions.
It took about 20 mins to detail my research and 2 questions for the machine learning.
Interview questions [1]
Question 1
Question 1. How to deal with unbalance data where the ratio of positive and negative is huge.
Question 2. Estimate the disease probability in one city given the probability is very low national wide. Randomly asked 1000 person in this city, with all negative response(NO disease). What is the probability of disease in this city.
I applied through an employee referral. The process took 1 day. I interviewed at Amazon
Interview
I got referral by my friend, and got contact the next day. However I didn't have time during that week, thus I rescheduled the time of the interview. The recruiter was very nice, he helped me reschedule to the next week.
Interview questions [1]
Question 1
No behavioral question. He let me talk abouth one of my research which in my resume first. Then he asked me three tech questions. The last one is about probability.