I applied online. I interviewed at 3Red Partners (Chicago, IL) in Jul 2025
Interview
Standard process with multiple rounds: phone call with HR, Zoom with traders, take-home coding challenge, Zoom with QRs, followed by an on-site. People were very professional with an academic mindset.
Interview questions [1]
Question 1
Consequences of the serial correlation of the error to regression coefficients. Python GIL.
1st round with senior QR, to talk about resume
2nd round with HR.
Take home assessment to use market data to find alpha.
3rd round with another QR.
Rejected after 3rd round.
I applied online. The process took 1 week. I interviewed at 3Red Partners in Feb 2022
Interview
First stage was online assessment. There were total 8 problems, 5 basic stat/prob questions and 3 coding problems (1 in C++, 1 in python, and 1 in any language you want). I didn't get any message after that.
1
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