RejectedTechnical Screen

Trade Data and Timestamp Precision

Citadel SecuritiesSoftware Engineer · Technical Screen · Sep 2026

The author reports a Citadel Securities process with an initial recruiter screen and two technical interviews, without an online assessment. A New York team lead conducted a one-hour session involving trade reconciliation, behavioral questions, and design follow-ups. A London lead then held a longer-than-scheduled interview combining another trade-data task with detailed resume discussion. The ac…

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