Ho sostenuto un colloquio presso Jane Street (New York, NY)
Colloquio
The interview was fair, had 4 phone rounds followed by an on-site. The on-site was quite fun, but unfortunately I messed up big time in one round. I was overconfident in my estimation (which turned out to not be correct, but this was not the problem) and as a consequence lost a big deal of the capital I had assigned for the game.
Domande di colloquio [1]
Domanda 1
Standard dice questions in the phone interview, probability and stats-based games in the final round
online assessment and video call interview, asking probability and expected value type questions. pretty straightforward. The questions are quite difficult but interviewer is very kind and happy to work through questions with you
Domande di colloquio [1]
Domanda 1
Imagine you have a 9-sided die, you get points corresponding to the face of the die after rolling, however, rolling a 9 ends the game and gives score of 0. what is your expected value of the game, how would you play?
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Jane Street (Londra, Inghilterra) nel mese di gen 2026
Colloquio
I did an interview in January. The interviewer was very nice and asked some probability questions. I answered the questions correctly but stumbled a bit. I didn't get a follow up interview.
Domande di colloquio [1]
Domanda 1
The interview question was a probability problem, asking if 100 people are in the line and another line opens up, what should be my strategy. The follow up question was whether the answer was realistic and what would differ in the real world (and not assuing everyone makes decisions based on probability).
Ho presentato la mia candidatura tramite l'università. Ho sostenuto un colloquio presso Jane Street (New York, NY)
Colloquio
stats questions—typical coin tossing games, probablility questions associated with it. very hard and did not pass the second round. not sure if i have a new shot. the recruiters are very nice though.
Domande di colloquio [1]
Domanda 1
toss coins of values 1~5, something about expected value