Citadel Securities Quantitative Analyst interview experience

No offer

Hard

Positive

Chicago, ILPosted Nov 2023 · Candidate report, summarized by Dataford

I went through a fairly technical, multi-round interview process where the emphasis stayed on high-level math and stats alongside some coding.

Across rounds, I felt like I was being tested on more than just reaching an answer; they wanted me to handle concepts quickly and speak through logic in a way that made it easy to follow. Coding and probability showed up together, and there were also sessions that leaned hard into expected-value style reasoning.

One round strongly suggested that if you had a PhD, they’d expect you to be ready to talk through your paper in detail. Another set of interviews mixed probability and linear-model knowledge, including derivations related to least squares, plus some coding on top. I remember the

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