First and second rounds are some calculations and brain teasers.
Some of the questions are
1, 41*39, ...
2, Calculate the angles between the arrows of a clock.
3, Game Theory questions
The difficulty of questions in the first two rounds are reasonable, but need to be fast.
J'ai passé un entretien chez Jane Street (Londres, Angleterre) en janv. 2026
Entretien
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.