Citadel Securities Quantitative Trader interview experience

No offer

Hard

Positive

United StatesPosted Apr 2025 · Candidate report, summarized by Dataford

I took an online assessment and then went straight into several rounds of quantitative interviews.

The process focused heavily on probability and statistics, with market-making style elements mixed in as well. After progressing through the early interview rounds, I ultimately got rejected after the second round.

What stood out most was how concentrated the questions were—when I thought I might get a broader mix, the interviewer kept circling back to probabilistic reasoning and how I’d reason under that kind of uncertainty. I felt okay during the first part, but by the time I hit the second round, the problems landed more sharply on the same theme and it wasn’t enough for me to earn the

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