Citadel Securities·Quantitative Researcher

Citadel Securities Quantitative Researcher interview experience

No offer

Hard

Positive

SingaporePosted Sep 2021 · Candidate report, summarized by Dataford

My path started with HR and moved into technical rounds that felt centered on machine learning and algorithms.

The conversations weren’t lightweight; I spoke with a junior researcher and then a senior researcher, and the problems were very much in the quant interview style—probabilistic and algorithmic reasoning rather than general coding.

In the senior portion, I ran into a question that I wasn’t able to finish, and that ended up being the deciding factor. Before that, I also had a separate technical screen experience where I answered probability questions and general market-knowledge questions, and I got through the coding discussion cleanly.

Ultimately, I didn’t get the offer, and what I remember

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