The interview process starts with a coding assessment followed by an interview, then a technical interview then a final stage with one of the higher ups within the company. There may be an additional stage depending on your level
I applied online. The process took 4 weeks. I interviewed at Citadel (London, England) in Dec 2024
Interview
You get a hackerrank and then the second step is a 45 minute behavioural and technical interview. Did not pass this, even though I aced the Number of Islands questions. HR is horrible and has not responded to my emails multiple times.
Interview questions [1]
Question 1
Number of islands. Follow up: How would you parralize the solution?
Instant OA containing 2 leetcode hards to do in one hour. This was at the same time as they reviewed CVs so even if you passed, it is not guaranteed that you will continue.
Interview questions [1]
Question 1
2x leetcode hard questions, there is a list of them online.