Recruiter call, hiring manager call and then a final round of 6 interviews. Each 45 minutes. The recruiter was incredibly helpful and will walk you through the steps and spend as much time as you need to understand the structure. Each round of interview test a different aspect (e.g. design thinking, analytical thinking, product sense, ML knowledge, cultural fit). It was rigorous but the team was incredibly talented and respectful. Most of the interviews felt like a conversation intermixed with brain teasers rather than Q&A where the interviewer doesn't say show any emotions but just keeps typing.