I applied through university. The process took 3 weeks. I interviewed at Jane Street in Feb 2015
Interview
The interview was really difficult although the interviewer was nice. Got bunch of brainteasers and problems on probability stuff. No formal attire required and scratch papers available. Stuck on the probability question and did not get a second round.
I applied online. I interviewed at Jane Street (London, England) in Jan 2024
Interview
The entire interview consisted of two mathematical problems. It was a conversational process of problem solving. The first question (as I am told) is almost always a more calculational probability problem, and the second focuses more on game theory. There may be no best answer - think heuristically to respond with at least something sensible.
Interview questions [1]
Question 1
Mathematical problems - mainly probability and game theory.
I applied through university. The process took 4 weeks. I interviewed at Jane Street in Oct 2021
Interview
First hand in your CV
Then you will get an online problem sheet containing 5 questions. They are all related to probabilities. Topics include the return of rolling dice, choosing balls etc
After this, they'll send you the interview details
Interview questions [1]
Question 1
If you can choose to roll dice after the first roll, what is your expected earning
I applied online. I interviewed at Jane Street (New York, NY)
Interview
Hard they really drilled you to see if you’re worth the money they will be paying you. Very hard case study (like kinda) and then cv and questions. They definitely like feeder schools and that will play a big part in you getting at least round 1.
