 He was a Lecturer, Senior Lecturer and Associate Professor in the Department of Zoology, University of Ibadan (1973-1981), and became a member of the University's Senate.He also was a Visiting Scientific Fellow at the International Atomic Energy Agency and the Food and Agriculture Organization.He was Dean of the College of Science, Dean of the College of Postgraduate Studies, Deputy Vice-Chancellor and member of the Governing Council of Imo State University.