Jane Street
4.3 of 5 15 reviews
www.janestreet.com New York, NY 150 to 499 Employees

Jane Street Summer Internship Interview Questions & Reviews

Updated Jan 28, 2014
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No Offer

Neutral Experience

Difficult Interview

Summer Internship Interview

Anonymous Interview Candidate
Newyork, Scotland (UK)

I applied online and the process took a day - interviewed at Jane Street in January 2010.

Interview Details – Phone interview after application through internet

Interview Question – here were a few bunch of simple math questions and some probability questions. If you toss 4 coins and get 1 dollar for each heads, how much are you willing to pay to play the game? What if you have the chance to toss again one coin? What about two?   View Answer

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No Offer

Positive Experience

Difficult Interview

Summer Internship Interview

Anonymous Interview Candidate

I applied online and the process took 2 weeks - interviewed at Jane Street in February 2012.

Interview Details – Several rounds of phone interviews, consisting of mental math, probability questions and brain teasers. They ask you about how confident you are about your answer and make you to bet (virtual) money on your answer.

Interview Questions

  • A bus pulls up to a stop. 3/4 of the people get off and 7 get on. Repeat two more stops with the same results.

    What is the smallest number of people that could’ve initially been on the bus??
      View Answers (3)
  • Suppose you are given the opportunity to bid for a treasure chest, which you know to be priced uniformly anywhere between £0-£1000. If you bid equal to or above the price, you win the treasure chest (at the cost of your bid). If you bid below the price, you do not earn the treasure chest.
    Now, also suppose you can sell the treasure chest for 1.5 times the price of the treasure chest (should you obtain the chest). What should your bid be?
      View Answers (4)

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Summer Internship Interview

Anonymous Interview Candidate

The process took a day - interviewed at Jane Street in February 2009.

Interview Details – Interviewed through on campus recruiting. The interview was all mathematics, but the problems they gave were interesting!

Interview Question – A probability question I cannot recall.   Answer Question

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