The process took 1 day. I interviewed at Jane Street in Sep 2011
Interview
1st round phone interview. Was asked 3 simple addition/subtraction questions, and ask if i'm willing to bet 1/4 odds i got it all correct, 1/19 odds i got it all correct. Then I was asked the dice questions. Roll two dice what was the probability that it is >9. Nerves got into me and I didn't answer the questions fast enough, which i think it is why I got rejected. Interviewer was very friendly and patience.
Interview questions [1]
Question 1
steel ball with 8cm diameter weigh 8 ounce. how much does a 12cm diameter steel ball weigh?
I interviewed at Jane Street (London, England) in Jan 2026
Interview
einen runden spiele am Vormittag und dann programmieren am nachmittag.
Biem spiele hat man parallel wetten sollen, also ein buy and sell zwishudn ein sechseiiger Würfel und sowas. oder karten wetten auf das die karte rot ist und zwischen 5-9 was zahlst du für diesen output und so. anrfang rechnen danach abschärtzen udn Ergebnisse interpretieren
Overall, it was a pleasant interview experience. I answered a few personal questions and encountered one that was slightly confusing, but the interviewer was friendly, and the conversation flowed well overall
Probability questions, nothing crazy but quite open ended, they want to know your thought process and calculations. Pen and paper allowed but no calculator. No OA, a few rounds and got rejected. Zoom call with a trader.
