Candidatei-me online. Fui entrevistado pela Jane Street (Londres, Inglaterra) em nov. de 2025
Entrevista
3 phone interview rounds + finals onsite at London office. first two interviews easy probability & puzzle questions. the 3rd one half-opened question from game theory & strategy, you play a game with the interviewer ; finals through multiple rounds, some coding, playing games, market making, strategy
Perguntas de entrevista [1]
Pergunta 1
there is a road, and 4 sign, each sign can be put in one direction (west/east) and forbids parking in that direction from the sign to the end of the road. each sign can be rotated in one of the two way, independently from the others. what is the probability that at least one (out of 5) parking spots between and parking signs will be permitted to park on.
Fiz uma entrevista na empresa Jane Street (New York, NY).
Entrevista
They asked mostly probability and game theory questions. On-site consisted of a lot of betting games. Very collaborative experience when working on through questions. Overall I enjoyed the the interview experience.
Perguntas de entrevista [1]
Pergunta 1
First question was on dice rolling, you get one dollar if your roll is higher than your opponent then you win nothing otherwise.
Fiz uma entrevista na empresa Jane Street (New York, NY).
Entrevista
Final round consisted of five rounds in person. Standard market making game on sum of 4 cards with side bet for arbitrage (40 card deck), then one coding (simple, not leetcode esque), then one data analysis, and two more math/trading esque games
Perguntas de entrevista [1]
Pergunta 1
For side bets, you can do on next card being red/black or higher/lower than 5.5 for 1:1 payout. (you need to figure out how to use this for arb)
Fiz uma entrevista na empresa Jane Street (New York, NY).
Entrevista
Applied through college job posting, had a preliminary phone call with HR, and then a couple of phone interviews in which I got asked mathematical puzzles. Interviewers were nice and gave hints when needed
Perguntas de entrevista [1]
Pergunta 1
Probability that a card is of a given colors/suit given some other 5 already extracted cards, robot game
