Online assessment followed by a short interview. Final round is 3 three 1 hour interviews. The process took about 1 month from start to finish. Overall the process was pretty smooth and recruiters were responsive.
Candidatei-me por indicação de um funcionário. Fui entrevistado pela Citadel Securities (Londres, Inglaterra) em out. de 2025
Entrevista
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)
Perguntas de entrevista [1]
Pergunta 1
Why did you choose to use ___ (rare technology) in your last project/internship
Candidatei-me online. O processo levou 3 semanas. Fui entrevistado pela Citadel Securities (Singapura) em set. de 2025
Entrevista
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.
Candidatei-me online. Fiz uma entrevista na empresa Citadel Securities.
Entrevista
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.
Perguntas de entrevista [1]
Pergunta 1
implement ring buffer structure, write and read function
