Jane Street Capital Interview Questions & Reviews
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Updated May 25, 2012 – Interview questions and reviews posted anonymously by interview candidates.
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Difficulty Rating [?] Based on 184 ratings 
“Difficult” Interview
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Interview Experience [?] Based on 184 ratings
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| 1–10 of 184 Jane Street Capital Interviews | Sort by |
Assistant Trader at Jane Street Capital
Posted May 25, 2012
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3.0
Average Interview
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Overall Negative Experience
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Interviewed and No Offer
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Interviewed Jun 2008 (took 1 week)
Initial math test and brain teasers were quite easy, but 3rd interview was about some statistics and were bit nasty once u get confused. Interviewer were nice and they gave me chance to re-think and pushed... and solved the problems. However i dindt get offer because they thought I could do bit not good under pressuer...
Other Details
I got the interview through a College or University and the interview consisted of a Phone Interview, a 1:1 Interview and a Skills Test.
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Helpful Interview?
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No
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Trading at Jane Street Capital
Posted May 18, 2012
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5.0
Very Difficult Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Jan 2012 (took a day)
math
Interview Questions
Other Details
The interview consisted of a 1:1 Interview.
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No
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Trader at Jane Street Capital
Posted May 16, 2012
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4.0
Difficult Interview
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Overall Negative Experience
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Interviewed and No Offer
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Interviewed May 2012 in London, England (United Kingdom) (took a day)
Simple questions really. Haven 't prepared well and outcome was a bit disastrous.
The interviewer was quite friendly and helpful with the process but the questions
depend on how well you perform, e.g., if you stuck on a simple question don t expect
to ask you subsequently a hard one. They gradually increase the level of complexity.
Interview Questions
heads. Answer the question for n= 2, 3, 20000
at least one six.
Other Details
The interview consisted of a Phone Interview.
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Junior Trader at Jane Street Capital
Posted May 15, 2012
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3.0
Average Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed May 2012 (took 2 weeks)
first round questions are easy, mental math, probability,
The interviewer was very patient and nice. My phone signal was terrible so he had to call me several times.
Interview Questions
Other Details
I Applied Online and the interview consisted of a Phone Interview.
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No
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Assistant Trader at Jane Street Capital
Posted May 15, 2012
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5.0
Very Difficult Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Jan 2012 (took a day)
First of all, make sure you don't dress up when you go into the interview. My interviewer had a basic polo and jeans, and even in a nice sweater I felt overdressed. He did a preliminary introduction to get the ball rolling, but we very quickly transitioned into the actual interview. First were the mental math questions (something like what does 1 million minus 2 equal to?), and then more involved math questions. Although I had a lot of experience in math competitions, it's been a while since I've done them and I felt the interview got pretty brutal. At the end, some simple probability questions were asked, and that pretty much concluded the interview. No fit or behavioral questions.
Interview Questions
Other Details
I got the interview through a College or University and the interview consisted of a 1:1 Interview and a Skills Test.
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Assista at Jane Street Capital
Posted May 14, 2012
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4.0
Difficult Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed May 2012 in London, England (United Kingdom) (took 2 weeks)
Submitted application, got email back for phone interview about a week later. First round interview went straight into mental maths, then some probability questions. Second round was harder probability questions.
Both interviews were late, and the second round had to be rescheduled due to the interviewer forgetting. Both interviewers were very friendly though!
Interview Questions
The game continues in this manner until a H is tossed. What is your expected value?
What's the optimal strategy, and what's your expected value?
What's the optimal strategy? Prove this is the optimal strategy.
Other Details
The interview consisted of a Phone Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Trader at Jane Street Capital
Posted May 13, 2012
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4.0
Difficult Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Dec 2011 (took 2 weeks)
The interview lasted four rounds before I was told I was no longer being considered. First two rounds were in-person at my university and in the surrounding area, while the third and fourth rounds were by phone. First two rounds were quicker questions about probability and estimation, while the later two went more in depth on specific problems.
Interview Questions
Other Details
I got the interview through a College or University and the interview consisted of a Phone Interview, a 1:1 Interview and a Skills Test.
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Helpful Interview?
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No
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Quant at Jane Street Capital
Posted May 10, 2012
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3.0
Average Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Jan 2012 in Hong Kong (Hong Kong) (took a day)
Need to be analytic
Interview Questions
Other Details
I got the interview through a College or University and the interview consisted of a 1:1 Interview.
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Trader at Jane Street Capital
Posted May 2, 2012
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3.0
Average Interview
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Overall Positive Experience
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Interviewed and No Offer
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Interviewed Feb 2011 in New York, NY (took a day)
I was contacted by the recruiter the next day after my application. The recruiter asked for some sample code from some recent projects. After I submitted the code for a couple of projects I had worked on, I was contacted for the first (phone)) interview. The response were very fast. My interviewer was very polite and seemed very smart.
Interview Questions
Other Details
The interview consisted of a Phone Interview.
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Summer Internship at Jane Street Capital
Posted Apr 27, 2012
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4.0
Difficult Interview
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Overall Positive Experience
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Interviewed and No Offer
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Interviewed Feb 2012 (took 2 weeks)
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
What is the smallest number of people that could’ve initially been on the bus??
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?
Other Details
I Applied Online and the interview consisted of a Phone Interview.
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