Ohpen Devops Engineer interview questions

The interview procedure was first I talked to CTO and in the second round I talked to product manager and one of the system engineers. I jad a great performance in the technical interview and the system engineer from Ohpen even told me after the interview to put laptop as a condition in the contract. That's why I thought I am approved but the week after I found that the same guy rejected me because of not knowing a syntax. That was very unprofessional.