Percona Senior Database Administrator interview questions

Good, respectful, hard at technical part. HR contacted me by email and then skype. Always very respectful and informative. Had to exchange some emails and then scheduled a technical test. Person to test got late but OK. Had 1 more intervel in the same week. had to wait 1 week for another interview about myself, personal information and background. Another technical interview happened I do not remember when. Took some weeks and a new quick call and then CEO interview that was nice and quick. Everything was OK except that take a little long but it is expected in this industry.