I applied via the internal career website with the notion that the interview process would be quicker since I already worked there. The recruiter reached out to me one week after application submission. I had already spoken with the hiring manager informally but formally went through the first round of interviews which was mostly behavioral questions and a resume overview (30 min over the phone). Three weeks passed after this, where I had emailed the HM asking for a estimated timeline. An additional week later, I reached out to the recruiter to ask for a timeline. The HM emailed me back saying that her team got really busy and then scheduled another round. Due to the holidays, this interview was scheduled over a month later. Final round was 3 hours long with 4 different managers over video. Each manager essentially asked the same thing over and over which I thought was incredibly redundant. Ultimately, they did not extend an offer which I discovered from a one sentence email from the HM saying "they were looking for somebody with more experience." I was a bit confused since I had been speaking to her for 3 months at that point, where she was well-informed of my years of experience from the start. I felt as if they dragged on my interview process out of courtesy since I was already an employee, but it was just a huge waste of time on my part. Overall, the interview was not incredibly difficult but did take way too long--especially for an internal application. Ultimately, I am glad they did not extend an offer at the end of the day.