First was the recruiter call, they were really friendly and informative. Second was with the Hiring Manager and it was really relaxed, talked about my previous experience and motivation for this role. Third was a technical interview with questions about APIs and Networking with 3 Managers. Fourth interview was with the higher Managers/Directors, they also asked about the previous experience and motivation for this role, they both had a camera off which was strange for me as I think it's more comfortable to be able to see the interviewers while talking with them.