I had a face to face interview with a team of three employees. I answered numerous questions and they told me that I would hear back from them sometime the following week. The next day I sent them a thank you email, and the HR manager replied saying that the team was very impressed and asked if I could do a second interview the next day. I agreed to the interview, however they never got a hold of me. When I contacted them to ask if they were still interested in doing a second interview it took them 2 weeks to get back to me and then they told me that they had already hired someone else. I was really angry that they planned a second interview and just blew it off without even telling me. To me, the process was very unprofessional.