There were several people in the interview process: HR, the PM from the project where they needed a new QA, and two senior developers - one of them had experience working as a tester. The last part of the interview was discussing the salary with the CEO. Through the interview, the atmosphere was very pleasant and I can honestly say that it was the best job interview I ever had. They liked me as well so I accepted their offer the very same day. The offer was very enticing in financial terms, by the way.