HSS Hi-Tech Security Solutions interview questions

Applied for a supervisor position only to find out at the interview that all positions had been filled and the interviewer thought I had applied for another position. The interviewer had not read my resume and knew nothing about me. I worked for the previous security company that had the contract that HSS was taking over and he acted like I was an unqualified bum off the street. After the interview, the interviewer ghosted me for a month until I had already accepted a different job. A lot of red flags from this company.