Dr. Onyema is an Associate Professor and Senior Lecturer at Imo State University, Owerri, Imo State, Nigeria, with expertise in international economic law and Corporate Law. He is presently the school’s Assistant Legal Officer and a member of the Directorate of Research and Innovation (IMSU DR&I).

He a member of the Bar in Nigeria and the Nigerian Bar Association and also the Nigeria Association of Law Teachers (NALT).