First round will be basic just a screening call, then second round will be with the account manager and third round with HR department. My experience was very good. I loved it. Prepare about your experience, tax terms, time zones, visas, roles you work on.
first phone interview, then onsite to meet the whole team. there were about 12 people in the process total. friendly people to talk with and open about the opportunity and the details on the job
