I applied online. The process took 1 week. I interviewed at Citadel Securities (New York, NY) in Sep 2022
Interview
They send you a hackerrank to gauge your coding abilities. The hacker rank exam consisted of 2 coding problem which you can solve in pretty much any coding language (python, java, etc.)
I was reached by a recruiter, and I was later called for a personal interview which happened on zoom. This was for HK location. There was no online assessment test.
Interview questions [1]
Question 1
Implement queue using vector, no constraints were given. I did it but took some time - verdict - reject.
Also asked in depth about a project I've worked on and I am proud of. I spoke of the last project I had worked on, he seemed satisfied didn't ask a lot of cross questions.
Standard frontend exercise. Know your javascript and react. Be prepared to explain how you would optimize for performance.
Explain in depth how react renders and rerenders.
Handle real time data display.
Very basic oop questions with a lot of emphasis on python syntax, should be fine if candidate prepared a b c d e f g h i j k l m n o p q r s t u v w y x y z