Ho presentato la mia candidatura online. La procedura ha richiesto 3 settimane. Ho sostenuto un colloquio presso Jane Street (Kon Hang) nel mese di ott 2017
Colloquio
You should first submit Online application, there are 2-3 round phone interviews followed by on-site interview. It last for around 6 weeks. They will call you at arranged timeslot.
Domande di colloquio [1]
Domanda 1
What is the probability of getting even number of heads given 4 coins
Ho sostenuto un colloquio presso Jane Street (Londra, Inghilterra)
Colloquio
Digital interview through zoom, one probability question and one (hard) brainteaser, 45 min, barely anything behavioral. I don't know how to prepare for the brainteaser well but the probability one could be practiced for.
Domande di colloquio [1]
Domanda 1
Dice game with 100-sided die, play against an opponent and the one who gets the higher number wins 1€ from the casino (not from the other person). Tie = no money. You get the option to double the number of your roll for 0.2€. In what interval is it worth doubling?
Ho sostenuto un colloquio presso Jane Street (New York, NY)
Colloquio
The process was overall quite smooth. It included several technical rounds focused on probability, statistics, and logical reasoning, along with some classic brainteasers. I realized I wasn't well enough prepared for the probability questions, which made it more challenging.
Domande di colloquio [1]
Domanda 1
You are playing a one-player game with two opaque boxes. At each turn, you can choose to either "place" or "take". "Place" places
$
1
$1 from a third party into one box randomly. "Take" empties out one box randomly and that money is yours. This game consists of
100
100 turns where you must either place or take. Assuming optimal play, what is the expected payoff of this game? Note that you do not know how much money you have taken until the end of the game.
Three interviews all including maths, probability (cards, dice etc). Quite hard, need to talk through answers with interviewer while doing the questions and they will help you get the the answer if stuck