Jane Street Interview Questions | Glassdoor

Jane Street Interview Questions

Interviews at Jane Street

1,243 Interview Reviews

Experience

Experience
63%
27%
10%

Getting an Interview

Getting an Interview
73%
22%
3%
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1
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0

Difficulty

3.6
Average

Difficulty

Hard
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  1.  

    Intern Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Difficult Interview

    Interview

    Received an excel sheet and got asked for a first interview. Never heard back. The interview process was tedious. Lots of probability questions. The process is 3 interviews long. However, I heard if you get it, it's great.

    Interview Questions


  2. Helpful (3)  

    Quant Analyst Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. I interviewed at Jane Street.

    Interview

    Two rounds of phone interview, all of them are portability questions or math contest style questions. First one lasted about an hour, second one about 45 minutes. Questions have really elegant solutions and he will guide you towards the solution. I guess they cared about the process of how you figured out the solution rather than the solution itself.

    Interview Questions

    • Given {1,2,3,..,30}, find the subset that maximizes the sum given that each element of the subset must be coprime with each other.   1 Answer
    • Given a thirty sided dice A and a twenty sided diced B, I win (a) dollars if a > b, and i lose (b) dollars if b >= a, what's they expected pay off   2 Answers
  3.  

    Rotational Development Program Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience

    Application

    I applied online. The process took 2 weeks. I interviewed at Jane Street.

    Interview

    There was an initial phone screening, and then I went to their offices in New York and was there from 9am to about noon. Two pairs of employees came in and conducted the interviews.

    Interview Questions

    • Definitely read and know all of the resources they give you.   Answer Question

  4. Helpful (2)  

    Quantitative Developer Interview

    Anonymous Interview Candidate
    No Offer
    Negative Experience
    Difficult Interview

    Application

    I applied online. The process took 1 day. I interviewed at Jane Street.

    Interview

    2 guys come in the room and tell you to write a Tetris game. They didn't seem to actually know the rules for block movement or the rules for Tetris. Get rejected with no feedback.

    Complete waste of time and a vague and poorly thought out interview question.

    Interview Questions


  5.  

    Intern Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied through college or university. I interviewed at Jane Street.

    Interview

    First round was a a short 30 - 45 minute phone call with some basic probability questions. None of them were particularly tricky and it seemed to be more of a "do you know the basics?" with them also asking for what assumptions I was making and why. The second round was two questions which I found much more challenging and was allowed one hour for. For both they were willing to work with you and wanted to hear your thoughts out loud. They let me run with a mistake until I noticed it and then would go back to point out where I went wrong.

    Interview Questions

    • Which of the following gives you the highest expected value: the square of a singular die roll, the product of two dice, or the square of the median of three dice roll?   1 Answer

  6.  

    Quantitative Trader Interview

    Anonymous Interview Candidate in New York, NY
    Declined Offer
    Positive Experience
    Average Interview

    Application

    I applied through college or university. The process took 2 weeks. I interviewed at Jane Street (New York, NY) in April 2020.

    Interview

    I talked with them at campus career fair before I applied. They got back to me really a week later and scheduled a phone interview. They are pretty fast and responsive. There were like 4 rounds of interviews in total. I didn't actually go to New York because of the COVID-19 situation.

    Interview Questions

    • They asked a couple of concepts they care a lot about is conditional probability and strategies for games, as well as expected value.   Answer Question

  7.  

    Rotational Development Associate Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Interview

    Very accommodating and friendly. I had a very pleasant experience interviewing with them! I got through to the final round in which they brought me in to speak with 3 groups of people: 2 groups were focused on technical interviews while the last was more of a friendly lunch

    Interview Questions

  8.  

    Trading Interview

    Anonymous Employee
    Accepted Offer
    Positive Experience
    Difficult Interview

    Application

    I applied through college or university. I interviewed at Jane Street.

    Interview

    All quantitative, no fit or questions about resume. Interviewers are very smart. Three phone screens and an on site with five interviews. HR very accomodating with location and timing. Overall the best interview experienc ein quant

    Interview Questions

    • Cannot disclose specific questions, but probability puzzles on phone screens and analysis of more extensive and complex games onsite   Answer Question

  9.  

    Quantitative Trader Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. The process took 1 day. I interviewed at Jane Street.

    Interview

    Very fast response. They replied me the very next day of my application, but I suppose I lacked the qualification/experience. For those with higher qualifications/experience, they may take longer to reply, so expect a longer waiting time.


  10.  

    Rotational Development Program Associate Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. The process took 3 weeks. I interviewed at Jane Street (New York, NY).

    Interview

    1 phone interview and then was contacted to come in for an interview day. HR was very friendly and helpful, the onsite interview was multiple hour-long interviews with a lunch break.

    Interview Questions

    • The phone interview consisted of basic probability and Fermi questions (think die rolls and estimating weight of earth...)

      The onsite interview was more open-ended creative questions such as how you would query a database of trading info that you answer on the whiteboard. Soft database questions.   Answer Question

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