1) Lecturer, University of Nigeria Nsukka: 2008 -date

2) Director, Zika-agro allied Industries Nigeria limited- a food prcessing firm: 1989-1994

3) Co-principal investigator for UNDP project: Cowpea research and supporting programme (CRSP)- a collaborative research programme between University of Georgia, USA and University of Nigeria, Nsukka: 1984-1989.

4) Production supervisor, Nestle Nigeria limited: 1982 -1983 (NYSC)