There are three rounds total: the first two are zooms with a mix of numerical problems and behaviorals (second round focuses a little more on your background); final round is in person at the nyc office.
Positive experience
Difficult interview
Application
I applied online. I interviewed at Jane Street (Hong Kong)
Interview
First HR interview, middles ones a lot of situational questions with different people from the office. final round was in person and was more of a mix of the two, tour of the office
Take home assessment followed by basic problem solving interview. Simple maths questions like how long to go round a race track at different speeds, angle between two clock hands. .
Interview questions [1]
Question 1
How long to go round a race track at different speeds