Getting the interview was really easy. I did not even give a cover letter. I got an email 3 days later and organised the interview one week later. The interviewer was perfectly on time. She was really nice and patient with me even though I blew the interview. Questions were easy, but I blew it because of stress and my mental calculations were not on point.
Interview questions [1]
Question 1
1.5 chicken lay 1.5 eggs in 1.5 days. How many eggs do 9 chicken lay in 9 days?
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
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