I am surprised they need PhD level staff. Someone with a High School Degree could figure how to resolve the antenna. Common sense should be the only qualification.
They don't call RF design part "Black Magic" for nothing. Normally, electrical engineers don't have to design for environments in which the users may be actively touching the components during operation, and the environment is constant unless the temperature reaches a critical point. RF engineers have to deal with the human body, orientation, and a variety of environments. It's not easy.