Supposedly 4 phone round interviews, followed by an in-person interview. Made it to the third phone round but was rejected after. First was basic probability and gets progressively harder through the rounds.
Interview questions [1]
Question 1
3x3x3 cube; paint the outside. Cut cube up into 1x1x1 cubes. Pick a random 1x1x1 cube and roll, what is the probability a painted side is face up?
A phone call, about 40 mins long, there was no formalities only vet technical questions. Around about 4 questions, with extensions to them if you completed them quickly. You were expected to talk through your thought process and methods for solving these questions.
The process took 2 days. I interviewed at Jane Street (London, England) in Oct 2021
Interview
Hard, first interview wasn't so bad with some relatively basic probability questions, second interview was a massive step up contained much more difficult questions that took a longer period of time to answer
I applied through college or university. I interviewed at Jane Street
Interview
Zoom Interview with only audio. We had to think aloud while solving the questions. Questions were from estimation, probability and games. Lots of follow up questions were asked. It was difficult.
Interview questions [1]
Question 1
Compare games related to throwing dice, simulate m-sided die using n-sided die.