2013-2022
Visiting Professor- Institute of global health Innovation- Imperial College, London, UK
2017-2020
Distinguished Professor- College of Public Health- Immam Abdul Rahman Bin Faisal University (IAU), Dammam, Kingdom of Saudi Arabia.
2003-2013
Professor and founding director of the Medical Information and Network Technologies Research Centre (MINT), Kingston University, London.
2007-2010
Visiting Professor, Division of Cellular and Molecular Medicine, St. George's Medical School, University of London, UK.
2000-2003
Associate Professor (Senior Lecturer), College of Engineering - Brunel University, London, UK.
1999-2000
Associate Professor (Tenured), Toronto Metropolitan (Ryerson) University, Toronto, Canada.
1996-1999
Associate Professor (Senior Lecturer), Faculty of Technology, University of Portsmouth, UK.