Operations applicants have rated the interview process at Citadel Securities with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 53.8% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Quick zoom call asking about my experiences, my extracurricular and what I know about the company. Nothing too fancy. But this was offered after I applied for the Trading internship.