Onsite

Onsite Design Round Interrupted Nonstop by a Confused Interviewer

CitadelSoftware Engineer · Onsite · Jul 2026

I just finished interviewing for Citadel Securities' C++ SWE position, and the whole experience was very negative, so I'm posting here to vent. The phone screen was an external merge sort with a heap. The interviewer was decent, and the overall experience was fine. After that, they quickly scheduled the onsite and told me there'd be five rounds total: design + 2h coding + 1h code review + 1h proj…

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