For the last 10 years, Prof. Wasajja has established himself as a vanguard in English Languages, Education, Media and Communication studies. He has worked in Kampala University and Kampala International University holding several academic and administrative portfolios as Head of Department for Language Department, Director of Distance and In-service Education, Deputy Director of Research and Academic Registrar. As a Visiting Professor of St. Laurence University, the East African University, Rwanda and the East African University, Kitengera, Kenya, he has contributed to the development of the Education and Language Curricula in all those East African higher Education Institutions.

Prof. Wasajja has to his credit over 50 publications in National and International Academic journals, conferences proceedings, books and book chapters as well as other periodicals. He has attended conferences and presented papers in Europe, USA and Asia. He is the author of; Students Communication Skills Handbook 1 which is officially used in most East African Institutions and has since sold over 1 Million copies worldwide; Communication Tools for Nurse: Therapeutic Communication and many others. He is also the founder and Executive Director of the Centre for Language Solutions, a registered International language training and testing center in Kigali, Rwanda.