Technical Screen

A Maddeningly Vague Data Sampling Question

CitadelSoftware Engineer · Technical Screen · Aug 2026

Citadel is out of their minds. The first half was fine — a normal self-introduction, project walkthrough, basic behavioral questions. Then the coding part started and that's where the craziness began: The interviewer was mumbling and couldn't speak clearly, and gave me a purely verbal problem: "we have millions of data points that need to be labeled," and told me to find the useful data. I kept f…

Shared by a candidate · reported Aug 2026. Interview formats change; use it as a guide, not a script.