Citadel Securities Data Analyst interview experience

I did two behavioral phone screens, and then the process escalated into a long case coding exercise that lasted about three hours. I remember it as the point where things shifted from conversation into sustained technical work.

After that, I had to present my code for about an hour to a manager and another analyst, which added another layer beyond just finishing the exercise. The final round was back in the office and felt more behavioral again, with the conversation focusing on how I thought and how I’d approach problems rather than new coding questions. The whole sequence felt intense