Citadel·Software Engineer·Technical Phone Screen
Jun 2026
Citadel software engineer round with a pair coding session. The interviewer did a quick team intro, I did my self-intro, and then we jumped straight into the problem. Nothing too wild, but order book problems have a way of looking simple until you're actually typing.
- Design and implement an order book system.
“Spent a minute clarifying requirements before touching the keyboard, which I think saved me.” The rest of the author's notes on Software Engineer interview at Citadel, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.
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