The first round of interviews was fairly informal. It was given by the department head and had a mix of HR related questions and technical questions. The second round of interviews was intended to be another 1:1 interview, but the regional manager was in the office at the time so it was a 2:1 interview. The questions were all pretty much the same questions that were asked during the first interview. Initially I was not selected for the position. However, the candidate that was selected left after a month and I was brought in for a third informal interview and given an offer.