At first the HR was very helpful and polite, but afterwards when there were more administrations to accept the offer, they became careless and missed an email sent from me. The chaos caused me in the end to lose the offer. Even the last round interview with the department head was easy, I could feel that they were only going through questions on the list.

They are mostly mostly behavioural questions, asking about your experiences written on your CV. I first received a phone interview lasting for around 30 minutes, then a f2f interview with the manager