Quantitative Trading Intern applicants have rated the interview process at Citadel Securities with 3.7 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 89% positive. To compare, the company-average is 53.9% positive. This is according to Glassdoor user ratings.
Candidates applying for Quantitative Trading Intern roles take an average of 7 days to get hired, when considering 9 user submitted interviews for this role. To compare, the hiring process at Citadel Securities overall takes an average of 25 days.
Common stages of the interview process at Citadel Securities as a Quantitative Trading Intern according to 9 Glassdoor interviews include:
Phone interview: 31%
IQ intelligence test: 23%
Background check: 15%
One on one interview: 15%
Skills test: 15%
Here are the most commonly searched roles for interview reports -
I applied through college or university. I interviewed at Citadel Securities (New York, NY) in Oct 2024
Interview
I applied online through normal campus recruiting, the first round was a technical phone interview. next round went directly to superday. they had very fast communication in the process. lots of probability/stats/games
Interview questions [1]
Question 1
what is the probability of getting a certain combination from a deck of cards?
I interviewed at Citadel Securities (New York, NY)
Interview
Online Assessment followed by 2 rounds of interviews with traders who ask you general probability questions / market making games. Then an onsite in the office which had a mix of a group game and 3 rounds of interviews; which had a mix of statistics and probability. Game was also similar in concepts. Very traditional quant process.
I applied online. The process took 4 weeks. I interviewed at Citadel Securities (Sydney) in Mar 2026
Interview
5 rounds - oa, 4 virtual interview rounds. oa consisted of probability, expected value and statistics questions. 1st round consisted of easy problems and market making. 2nd round had hard probability questions.
I interviewed at Citadel Securities (London, England)
Interview
Questions in earlier rounds were fairly easy. Final round was more difficult and open ended but overall quite interesting. One of the interviewers was very rude and kept going on his phone.