J'ai postulé en ligne. Le processus a pris 1 semaine. J'ai passé un entretien chez Jane Street
Entretien
Applied online the last day before deadline. HR phoned me the following Monday, went through my resume, and set a time for interview.
Interview process: All maths, mostly probability and conditional probabilities. I thought I did all questions correct, but I guess it was too slow. They really expect you to come up with some smart short-cuts instead of standard solving process.
Did not get into second round
Questions d'entretien [1]
Question 1
A cube painted with red paint was divided into 27 smaller cubes (3*3*3). Randomly pick one and toss it. What is the probability that at least one of the sides that can be seen has paint on it.
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.