Went through 4 different rounds in the interview. First with HR and then with an individual that did not work for the company. I was sent a "Thanks, but no thanks" email, and when I reached out to the HR rep, they apologized and said they had been on PTO and that it wasn't meant to be sent to me. I then went through an interview with the Hiring Manager. After that, I went through an hour long product demonstration with the Hiring Manager and the outside recruiter. I then received silence for 3 weeks, even after multiple attempts at checking in. I finally received the same "Thanks, but no thanks" email. After 4 rounds/over 1 month of an interview process, you would think the company would have the decency to call or email and let someone know. Not act like they had just received an application and didn't want to move forward with it.