I applied through a recruiter. I interviewed at Jump Trading (Chicago, IL)
Interview
First, I had many recruiter calls. Then, I received a first round interview, and finally multiple interviews in a final round. They try to match you to a sub team based on your interactions with the recruiters, and so your interviews will be largely predetermined.
Interview questions [1]
Question 1
Low level networking, Linux internals, hardware interfaces, basic data analysis, and project experience