Possesses a 30-year career in Kenya Defence Forces and Civilian Training Institutions. With a PhD in Peace and Conflict Studies and extensive academic credentials, he served as Senior Researcher and Director at the Center for Security Studies. He has been a lecturer at National Defence College (NDC) Karen and Kenya Military Academy, holding roles such as Dean of Faculty of Academic Studies and Head of Research and Evaluation. He designed and implemented strategic studies programs at universities, presently lecturing and researching at Kenyatta University. As Chairman of the Departmental Postgraduate Committee and Departmental Strategic Planning Committee, he has involved in security, diplomacy, and peace studies. Additionally, he is an adjunct lecturer at National Defence University-Kenya and Department of Diplomacy and International Studies at University of Nairobi. Dr. Handa has a published track record, including articles on national security and terrorism. He has attended numerous international conferences and seminars and served as a Military Observer in Western Sahara, conducting Comparative Military Strategic Research Study Visits across several countries.