The Network Support Company interview questions

Was contacted by a head Hunter back in November 2017 about a position for an overnight tech opening. Took over a month to get an interview. I felt it went very well. My initial impression was that appeared to be a fairly solid company. Unfortunately I just found out they passed me over. I wonder why they took so long to interview and just as long to respond. I had to reach out to the head hunter to find out the status. Not very professional in my opinion, hense the negative experience.