I was working here before, so HR clearance was quick. For the interview we just had one round of Technical Interview with CoC Head, background check with previous boss and casual meeting with Director.

First got an email from the recruiter asking my availability to schedule an initial call with the hiring manager which was 30-40 minutes. Had a second interview scheduled shortly with the hiring manager, next level manager, and a business partner which was around 1 hour (scheduled for short but call went long). Both calls were smooth, I was asked about my experience, how to handle challenging situations, strengths/weaknesses, hobbies, etc.