I applied online. The process took 2 weeks. I interviewed at Jane Street in May 2015
Interview
The interviewer had a tick Chinese accent and was difficult to understand. All of the questions were about mathematics. The interview lasted about 30 minutes and involved questions about probabilities.
Interview questions [1]
Question 1
What is the probability that in n coin tosses the number of heads will be even?
Several phone calls to go to the final round. The phone calls consists of mathematical, probabilistic brain teasers which was not that hard for a mathematics major. Final round was to harsh for me, strong mentality is required
I applied online. The process took 4 weeks. I interviewed at Jane Street (New York, NY) in Apr 2026
Interview
Lots of expectation/probability questions. Make sure to study game-theory type question that involves expectations. Specific concepts in stochastic processes don't seem that important. The first two were relatively easy. Just make sure to ask a question if there is any uncertainty
very fun a lot of interesting problems. The person which was managing the interview process was easily aproachable and really nice to talk to. Also interviewers seemed really interested in the problems given and gave me a lot of chances to talk about them