Citadel Securities Quantitative Analyst interview experience

No offer

Medium

Positive

ZürichPosted Mar 2026 · Candidate report, summarized by Dataford

After an initial introduction, my interview started with technical questions covering standard statistics and machine learning.

The interviewer kept building difficulty as we went, and the problems weren’t just formula-based—they required intuition, especially around correlation and thinking through model assumptions.

The session also had a cadence that felt really efficient: it started on time, and we moved through different topics without wasting minutes. One part involved a small amount of programming as well, where I was expected to demonstrate that I could translate the quantitative ideas into code rather than keeping everything purely conceptual.

Across the whole call, the difficulty felt moderate

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