I applied online. The process took 3 days. I interviewed at Capital One in Mar 2015
Interview
Received a quick phone call from HR and then a coding test on HackerRank. The HackerRank test consisted of the following:
Coin change problem, a coin flipping problem, and a NLP problem,
Interview questions [1]
Question 1
Write an algorithm for the following: Coin change problem, a coin flipping problem, and a NLP problem,
The interview process was very structured and well documented. You complete online tests first and then go through two rounds of business case & behavioral interviews. The business case topics can be related or external to Capital One. Be sure to prepare work anecdotes for behavioral interviews as they will ask for lots of examples.
Interview questions [1]
Question 1
What was the most complex work project you've worked on?
I applied through an employee referral. The process took 2 weeks. I interviewed at Capital One in Feb 2015
Interview
First I had a call from the recruiter, who gave me an overview of JD and responsibilities. Next I solved 3 questions on Hackerrank which were a difficulty level of above average to hard. Next round was an interview with a senior Data Scientist who gave me questions on Statistics and MapReduce. After a bit of tinkering, I got to the required answer. Right now waiting n the Case interview rounds on campus, DC.
Interview questions [1]
Question 1
Sample vs Population parameters, Mapper and Reducer functions