I applied online. The process took 1 day. I interviewed at Jane Street (Hong Kong) in Apr 2011
Interview
They came to our university and gave a career talk. Then I submitted an application through their web site and got the first round phone interview. The interviewer is very nice. She started from some questions about me and my application, like a warm up. The test questions are quantitative questions that focus on mental math, simple and conditional probability, and brain teasers. There were a fixed number of test questions, and it’s better to finish them correctly as soon as possible.
Interview questions [2]
Question 1
You have answered five mental math questions, what’s your confidence that three answers are correct? How about four answers are correct?
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.
