I applied online. The process took 3 weeks. I interviewed at Jane Street (London, England) in Jan 2025
Interview
The Questions are not too hard, but you have to be aware that it's part of the interview to even figure out what you should implement.
The interviewer was very friendly and it was a nice atmosphere
Average interview
Application
I interviewed at Jane Street
Interview
The interviewer asked me some probability questions, felt kind of competition mathy. The interviewer was friendly but I got stuck on the math. It doesn't seem like it was meant to be too hard if you're familiar though.
Interview questions [1]
Question 1
They asked some probability questions, a little tricky if you don't have any familiarity
first there's a 10-15 min call with a recruiter (another form of screening i guess) where you talk about your background and experiences. then if you pass that, an online interview. if you pass it too, there are 3 on-site interviews (they pay for everything), 2 before lunch and one after.
I was given a tree problem. At the start, I asked a few clarification questions. While coding it, the interviewer gave me some hints on how to better implement it. Was able to solve it. Did not get to the next round.