Very straight forward interview, no preliminary HR interview as other companies do. Basically one of their senior staff members video calls you and it will start asking C/C++ by looking at a remote shared notepad. The questions are very tricky, so be prepared to now well the key word const, difference between malloc an new (new calls the ctor malloc doesn't), the ++ unary increment operator after and before the var name, your OOP need to be in shape, and the difference between STL Data Structures like vector, list and map.