After two phone screenings where we discussed technical background I appeared for an onsite interview. The onsite was 4 1/2 hours long and I was not provided any breaks. The interview consisted of panel discussion of 2 to 3 people each and a technical test on a computer. The test presented challenges on Linux OS related problems and Puppet. I did well on the tests, solving all but one problem. In one of the panel interviews a person asked whether I would give root access on production systems to developers. The answer is no. There needs to be change control and separation of roles. It turns out the man asking the question is a company co-founder, who didn't introduce himself, and may not be favorable to having root access taken away. I may not have received an offer due to this and if so, it's a poor reason. A few days later an HR assistant called me but had no feedback at all about the interview or why I didn't get the offer.