I applied online. The process took 2 weeks. I interviewed at Jane Street (London, England) in Nov 2025
Interview
A take home assessment which involved extracting information from data in Excel, then a zoom interview focused on numerical problem solving. There were further stages after this but I didn't progress.
Lots of human interaction throughout the hiring process which is a nice change from many other firms.
Interview questions [1]
Question 1
Worked through two numerical problem solving questions, there's lots of information on what type of questions you might get asked on their website.
First the Simple CSV problems, need to check the files they sent to you and use the data in the file to calculate, not very hard, need to be careful since it mignt be a messy if you don't group the data in it. Then zoom
Interview questions [1]
Question 1
Dice Questions about the probablity and strategies
I was only invited to the first round of interviews after the online assessment. The first round of interviews, they asked you lots of brain teaser and probability sort of questions
Application
I interviewed at Jane Street (London, England)
Interview
A screening test and then two online zoom interviews initially. First is maths combinatorics brainteasers (counting problems) with one speed-distance-time problem, and then the second interview is coding focused on your problem solving so language is irrelevant