Reached out to by recruiter on LinkedIn. Both recruiters I met with were friendly. Next stage was behavioral call with hiring manager, and then following stage was 3 separate interviews consisting of: behavioral with team, technical with team and final call with hiring manager.
The technical was providing high level definitions for different programming terms (i.e. what's boxing). What struck me as odd (and 1 reason for the negative experience) was when I was asked to provide on a scale of 1-10 my expertise in C#. I feel it's a bit arrogant to respond 10 so I went with 7. The 2 interviewers weren't thrilled about that and we spent the remainder of the time discussing why 7 and not 10.
Was told I'd hear back by next business day, however was ghosted by hiring manager and recruiting team afterwards.