Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Citadel Securities
Colloquio
Started with a bunch of technical questions and follow up questions based on the previous answer.
Then only left 20 min for coding question (leetcode hard). It is pretty difficult.
Domande di colloquio [1]
Domanda 1
implement ring buffer structure, write and read function
Ho presentato la mia candidatura tramite segnalazione di un dipendente. Ho sostenuto un colloquio presso Citadel Securities (Londra, Inghilterra) nel mese di ott 2025
Colloquio
Pretty straightforward, some computer architecture. Good prep goes a long way for this in fundamentals. Know your CV and be able to answer a grilling, explaining design decisions. Fair sum of leetcode for others, but I got implementation-style questions more focussed on low level concepts (network protocols, allocation etc)
Domande di colloquio [1]
Domanda 1
Why did you choose to use ___ (rare technology) in your last project/internship
Ho presentato la mia candidatura online. La procedura ha richiesto 3 settimane. Ho sostenuto un colloquio presso Citadel Securities (Singapore) nel mese di set 2025
Colloquio
The interview started with C++ trivia questions, which version I use and some features of it with internal implementations. The interviewer listened carefully to everything I said and we had good discussions. The coding question required quick thinking about which data structure would be best as per tc and sc.
