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      Jane Street

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      Trader Intern Interview

      Oct 21, 2013
      Anonymous Interview Candidate
      No offer
      Neutral experience

      Other Trader Intern Interview Reviews for Jane Street

      Trader Intern Interview

      Jul 25, 2025
      Anonymous employee
      Accepted offer
      Positive experience
      Difficult interview

      Application

      Difficult interview

      Application

      I interviewed at Jane Street

      Interview

      Past the first round interview and stuck on the problem on the second interview. interviewer wasn't helpful.

      Interview questions [1]

      Question 1

      Two people each bids a number before throwing a 30 faced die. Whoever gets closer to the number wins and wins the amount of money equal to the number they throw. e.g I bid 15 and you bid 16. the die lands on 10 then i win 10 from you. What's the best strategy and the expected payoff.
      14 Answers
      2

      I interviewed at Jane Street

      Interview

      Many rounds of brainteasers, some of which are more rapid fire in nature and others which require you to flesh out a detailed answer to a complex problem. Be well rested and well prepared!

      Interview questions [1]

      Question 1

      Math and probability brainteaser questions
      Answer question

      Trader Intern Interview

      Oct 23, 2023
      Anonymous Interview Candidate
      London, England
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at Jane Street (London, England)

      Interview

      mostly maths probability questions - a lot of conditional probability, relatively easy in the first round, but you need to think out loud - you need to be really fast

      Interview questions [1]

      Question 1

      conditional probability stuff, weather stuff
      Answer question

      Intern Trader Interview

      Oct 18, 2023
      Anonymous Interview Candidate
      Hong Kong
      No offer
      Neutral experience
      Difficult interview

      Application

      I interviewed at Jane Street (Hong Kong)

      Interview

      4 rounds in final. The first one is market making of cards. The rest are especially designed games. The interviewer may ask added question along the playing of the game

      Interview questions [1]

      Question 1

      What is the variance of a given quantity
      Answer question
      1