I applied through university. The process took 1 day. I interviewed at Jane Street in Apr 2011
Interview
All the questions Jane street will ask in the first round interview would be mental math and probability question. I asked hr why they looked so highly on mental math. She answered that because based on their company' s experience, the guy who were better at mental math would be more adapted in their specific trading model.
Interview questions [2]
Question 1
two packs of poker, one has 52, the other has 104. You pick two cards separately from a same pack. If both of two cards are red,you win.which pack will you choose?
I roll a die, and I will give you an amount in pounds equal to the number on the die. For example, if I get 5, I will give you 5 pounds. What is the price you are willing to pay for this game?
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.