Hard. Ask advanced python questions. 2 coding questions (1 easy 1 medium). Interviewer was friendly. Ask some resume questions (what project related to python that you are most proudest of, explain that...)
Went pretty well. They told me to introduce myself, asked me a question about my resume and then asked a LeetCode Medium question. I did not move forward to the Superday round.
I applied online. The process took 3 months. I interviewed at Citadel (London, England) in Sept 2024
Interview
Five interviews as part of a 3 round process. Technical phone screen, then three back to back technical interviews and one technical interview after with lead on assigned team. Content of interviews can vary greatly depending on interviewer.