I applied online. The process took 4 weeks. I interviewed at Jane Street (London, England) in Dec 2024
Interview
Standard first round quant interview, expectation question along with a more complex spot the two cases for some scenario and find and the probability of each case. Not tough to answer the first round questions as long as you’re prepared which I was not
Interview questions [1]
Question 1
Asked about my CV, and how I achieved something from a previous internship.
Don’t want to go into more details on the exact technical problems as asked not to but the stuff online on preparation platforms is accurate
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.