After submitting my resume online, a date for a first round interview was set up. The interviewer called on time. The questions were focused on probabilities and problem-solving. The first interview is without pen and paper and it is expected that you come up with a solution within reasonable time, but you can take a few seconds to think. The interviewer was friendly, but didn't provide any help or hints if I didn't know the answer immediately.
Interview questions [2]
Question 1
There are two painters: Mr. Fast can paint a room in 1h, Mr. Slow needs 1h15 min. If they work together, how long does it take to paint one room?
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