1st round: recruiter: overall ok, standard questions. 2nd round: team lead: many questions on how you are able to cross sell, about what is their API and their technology. 3rd round: Director: Many many questions on your track record, how you are able to sell, cross sell, why do you want to change your job, career path.. etc. Case study of how you managed to cross sell. Director is particular about people changing jobs every 3 years in tech as to them that is a red flag.