I applied through college or university. The process took 1 week. I interviewed at Jane Street in Feb 2017
Interview
All probability questions, basically no behavioral questions at all. This was a first round interview, so the questions were easy. I was just very nervous so I had a hard time but if you keep a cool head the first round shouldn't be hard.
Interview questions [2]
Question 1
It Rains 30% of the time on Saturday, 40% on Sunday. How often does it rain on the weekend?
I applied online. The process took 2 days. I interviewed at Jane Street
Interview
Phone interview discussing probability games that focus on working out expected value and optimising game strategy, lots of maths and statistics were involved, should require decent knowledge of probability and averages.
Interview questions [1]
Question 1
Calculate the optimal strategy for heads and tails game
there's a suggested reading guide about interviews on their website. that's probably the bare minimum. Two phone screens about probability and strategy games and idk about the onsite, didn't get that far.
I applied online. The process took 2 weeks. I interviewed at Jane Street (New York, NY) in Nov 2022
Interview
Was very good process overall. The call was quick and right to the point and the interviewer was open to help when stuck on the problem. The call lasted a total of around an hour and was a great experience.
Interview questions [1]
Question 1
Some basic probability questions and brain teasers.