Not an interview but technical tests, which includes one sql problem (easy to medium level) and a machine learning modeling in jupyter notebook. The tests are not hard but really time-demanding.

I went through three rounds of interviews and was ghosted. Seven months later, I received the rejection letter. All questions are about my experience and my knowledge to related work. It's not difficult but they didn't provide a clear timeline.

Coding Challenge and process through recruitment. Hard problems even harder than full time problems but it was a internship role. They were also automated emails and the process was early on but fast responses.