I applied online. The process took 1 day. I interviewed at Jane Street (Pittsburgh, PA) in Jan 2016
Interview
Ok so I applied online and submitted a resume and all that, and then I got an email saying I had an interview and I called them at a pre-arranged time and basically solved math questions but then I failed because I was being very retarded that day, so yeah basically my only tip is to try not to be retarded and take your time on the questions, speed isn't everything but it's important
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