I’m in IT and this was what happened with me. I did my first round with the hiring guy, then for my team/technical, I had one with the manager who oversaw the team (who became my manager), then one with the owners of the company (it’s a fairly small company).

I landed the role and it pays more than my last job, plus the team is great, management is reasonable and understanding, consisting of people who try to work with me rather than hammer me into what they think I should do, and I’m just much happier with the job as a result.

I’d question any more than three though, that seems unnecessary.

I’m in a higher level position, but not lead of anything (just on a higher skilled position compared to others… Think escalation), anything less and three would be a bit much. If it’s entry level skilled labor, one or two would be plenty, and anything they call “unskilled” even two seems like a lot. Upper management/C-level, probably would need more interviews, but IDK, I don’t work in that type of job, nor do I have any desire to.