I applied online. The process took 1 week.
A quick 45 min one, just prep codeforces or LeetCode if you want to and be clear in your communication. Don't overcomplicate things! Have clear code, try to describe your solution before writing it, and handle edge cases.
The following metrics were computed from 2 interview experiences for the Citadel SWE Intern role in Singapore.
Citadel's interview process for their SWE Intern roles in Singapore is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having mixed feelings for Citadel's SWE Intern interview process in Singapore.