5 rounds of interview. The first one was with the HR and one of the subsequent ones was a seminar. Met with most of the people in the startup within the Flagship ecosystem. Questions were related to the problems the startup is trying to solve. There wasn't any hard technical problem.

The interview process was very well structured and described in detail; recruiters were very responsive. About four sessions on the technical questions about random topics on ML and the application (standard for an ML position), and a presentation. At the end, I didn't get the job, but I appreciate not getting ghosted, a genuine rejection letter (not an automated email from a no-reply account), and the detailed positive feedback, so it was easy to interpret areas of opportunity.