I've had 3 interviews in total. The first interview was with the CEO and an engineer from the team. Both were very well prepared and the conversation was more about who I am as a person and as a professional. The second interview was with the CEO, CTO and the engineer and it was mainly the CTO, who was asking the questions. The third and last interview was with the CEO and it was more about the details of when I could start and a few minor details.