I'm 15+ years of experience, I funded a few high level projects for corps and a few startups including hiring my teams. I was always conducting my interviews by

I'm 15+ years of experience, I funded a few high level projects for corps and a few startups including hiring my teams. I was always conducting my interviews by making some work with the candidate and I found it best approach. And quite recently I sat on another end of hiring table. I'm good at algorithmic challenges like letcode or hackerrank, I always liked puzzles like this. And yet, last interview I failed. Purely because I got a bit nervous and did not manage to deliver fully working solution in 15 minutes in front of interviewer. And that after passing their hackerranks and answering their general system questions. I guess their approach was all or nothing. Is it good or bad, I don't know. But from hearing their problems I knew their problems is something I eat for breakfast :)