They interviewed me for the wrong position! I applied for a job requiring C++ and strong OOP knowledge, and they asked me about microkernels and how compilers treat global static uninitialized variables in C, when low level knowledge was not required even as "nice to have", unlike other positions. I answered partially to these questions and I recognize that some concepts must be known by a C++ developer as well. Then I objected that it is not my field, but they didn't understand their mistake. The interview was not difficult, if you have interest for such subjects.

HR Reached me informing me that there is a senior C++ position available and asked me if I am interested after showing my interest, I received technical C++ test After taking the Test I got email that I have passed the Test and the HR reach me again for scheduling the technical interview the technical interview was mixed between coding challenge and modern C++ question, at the end of the interview he told me that the HR will contact me shortly and HR contacted me for the hiring manager interview and the hiring manager interview was really friendly talk about how we deal with customers, team and sprints and I was told that I will get feedback in next week and I didn't get any feedback for a month even after sending a follow-up to the HR