Had a total of 6 rounds - 2 informal (1 of which was with HR), and 4 going through their standard interview process of meeting different stakeholders/people in the organization. It's now been > 2 months since my last interview. No feedback. I don't mind investing time and effort going through 6 rounds of interviews (and be rejected the role) but a simple rejection courtesy email or call would be nice considering I, the candiate, have invested time and effort with the 6 interviews scheduled at different dates. After 2 follow-ups, heard nothing. I find that quite unprofessional.