I applied online. The process took 3 weeks. I interviewed at Jane Street in Sep 2017
Interview
First got a phone interview where they asked me two questions, one fairly easy regarding possible values of the denominator of a fraction, and another one more difficult that's listed below. Passed the phone interview but did not make it past the following coding interview.
Interview questions [1]
Question 1
I have a standard 52 card deck. One by one, I draw cards from the deck and place them face up in front of you (without putting them back). At any point, you may stop me and say a color. If the next two cards I draw both have that color, you win. Otherwise, you lose. What is the optimal strategy?
Very fun process, need to explain your thinking clearly and cleanly, interviewers were nice for all interviews as well. I would recommend working on math and probability questions prior to doing the interview,
The process began with serveral online tests for maths and logic. They gave a personal interview to get to know the candidate better and evaluate fit for the company/role, then held a technical interview covering maths and logic problems.
Fun and filled with unexpected questions. The questions rely on fast thinking and fast calculations, and sometimes intuition because there is no sufficient time for me to work through the whole problem.
Jane Street interviews FAQs
Quantitative Research applicants have rated the interview process at Jane Street with 3.5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 68% positive. To compare, the company-average is 63.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Quantitative Research roles take an average of 18 days to get hired, when considering 104 user submitted interviews for this role. To compare, the hiring process at Jane Street overall takes an average of 17 days.
Common stages of the interview process at Jane Street as a Quantitative Research according to 104 Glassdoor interviews include:
Phone interview: 50%
Skills test: 13%
One on one interview: 10%
IQ intelligence test: 9%
Presentation: 6%
Other: 5%
Background check: 4%
Personality test: 3%
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