I applied online. The process took 1 week. I interviewed at Citadel in Jun 2020
Interview
Phone interview with a quant researcher. Asked a few questions about previous research related to resume then went into a probability related question. Answered the question then was asked to code it on coderpad.
Very good and helpful, enjoyed how they had a technical aspect as well. The interview was nice and very nice and kinda nice. Extremely nice broski, lowkenuinely a nice experience broskini.
First round discussing work experience and some hypothetical research questions and how I would approach the problems. Highly conversational and chatty. Interviewer was nice and friendly and offered his insight along the way.
It started with an automated coding screen in a language of your choice, which I unfortunately did not get past. I chose Python for the screen, the questions were pretty standard I just wasn't prepared.