Global Advisor for African Sanitation Think Tank.               2013-to date

Vice-Chancellor, University of Energy and Natural Resources                   2012-2016

Director, African SNOWS (Welcome Trust funded)             2009-2012

Dean, Faculty of Civil and Geomatic Engineering, KNUST          2008-2010

Head, Department of Civil Engineering             2006- 2008

Chairman, WANet (West Africa network for water resources Management) Steering Committee                                                                                                2006-2008

SWITCH City Co-ordinator                         2006 -2011

Head, Centre of Environment and Technology, KNUST Institute of Science and Technology for Africa             2004 -2006

Chairman, Library Committee, School of Engineering            2003 -2005

Sectional Head, Environmental Quality Engineering KNUST     1990-2006

Acting Manager, Training Network Centre for Water Supply and Sanitation, Kumasi, Ghana                                                                                                             1994

Bible Class Leader at Mt Zion Methodist Church Kotei Society, via KNUST                                                                                                 1997-2012