Bitsight Devops Engineer interview questions

Recruiter contacted me and we had a small talk over the phone, we discussed the job role and basically if I am a good fit for the role. Which followed by a phone interview with one of the managers. The phone interview was a mix of technical questions and about my previous work experience. After the call I was given a coding exercise which I had to complete and email them back. After which I was immediately called in for an on-site interview. The on-site interview had 4 rounds- testing, coding, design and work experience related questions and final round was a behavioral round. The reason I am rating it as a negative experience is because it's been 3 months and after my multiple follow-up emails I have not yet received the decision of the interview. I found this highly unprofessional, the recruiter did not even once reply to any of my emails. Any professional recruiter would have replied with whatever decision they made or at least informed if they don't have a decision yet and are interviewing other candidates.