I applied online. I interviewed at Citadel Securities (London, England) in Mar 2025
Interview
I have given the initial screening of Citadel Securities. The initial screening of the company interview contains the data structure questions. The data structure questions include tree and graph questions. The difficulty of the questions was of medium level.
Interview questions [1]
Question 1
I have given the initial coding round and they have asked the DSA questions to me.