I applied online. The process took 5 days. I interviewed at Citadel in Oct 2016
Interview
It was a phone interview, around 50 minutes. There were three questions, one about market making and two about probability. For the first one, the interviewer asked me to play the market making game with him and see who can win... That was quite difficult especially I had no previous experience on that... The probability ones are relatively easy.
Interview questions [1]
Question 1
Based on the populations of a list of countries, play market making games with the interviewer.
After passing the resume screening, I got 2 hour assessment in python and the difficulty was mid-hard leet code problems. I don't remember the problems in detail but was not that hard.
The interview process was structured and efficient. After an initial online assessment, I completed several technical interviews focused on problem-solving and quantitative reasoning. This was followed by behavioral discussions with team members. Communication was clear throughout, expectations were well defined, and each stage provided a good understanding of the role and responsibilities.
OA -> First round phone with a trader, basic prob stat, behavioral, not too hard. Second round phone with a trader again the same format. From there there is a final round superday which consists of several rounds,
Interview questions [1]
Question 1
Tell me about a time you experienced a conflict in the workplace?