I applied online. The process took 3 weeks. I interviewed at Jane Street (Hong Kong) in Nov 2022
Interview
Direct technical questions right after a brief self-introduction. 2-3 questions are being asked and interviewers will guide your way through the question if you don't know the answer at first sight. Eventually, they will tell you the answer with an explanation. The whole process felt like a discussion.
Interview questions [1]
Question 1
There are one 10-sided fair dice and one 6-sided fair dice, what is the expected value of the outcome?
There was a few phone interviews that involved probability and game theory questions. Before a final round interview in hong kong. Interviewers are very nice best to describe your thought process
Interview questions [1]
Question 1
They asked me probability and gamer theory questions.
Interviewed for two rounds. I passed the first round last year so was able to continue immediately with the second this year. Probability/game theory questions. The interviewers are friendly and helpful.
Interview questions [1]
Question 1
If you roll a dice and receive that amount in dollars but have the option of rerolling up to two times, how much would you like to pay to play this game?
Jane Street’s interview process is fast-paced, multi-round (But if you have a deadline they will react accordingly) , and deeply quantitative: mental math, probability puzzles, game theory..., and conversational talk just before you start doing the problems
Interview questions [1]
Question 1
Some basic probability questions (more like brainteasers) involving expected values and markov chains. You should brush up on the greenbook and be comfortable with n-sided dice and strategies involving dice in general.