I applied through university. The process took 1 day. I interviewed at Jane Street (New York, NY) in Nov 2015
Interview
I had a phone interview that consisted of logical, probability and game theory questions. Starting from some very basic questions. The interviewer was very clear and helpful. The interview took about 40 minutes.
Interview questions [1]
Question 1
Play paper, rock, scissors without an opponent being able to play rock. How much would you pay for the game?