Dr Mwiya is a holder of a Doctor of Philosophy in Construction Management. She has a Master of Engineering (MEng) degree in Construction Management from the University of Zambia, and a Bachelor of Science (BSc) degree in Building from the Copperbelt University. She also has an Associate degree in Software Engineering from University of Advancing Computer Technology in Tempe, Arizona, USA. She is a Registered Quantity Surveyor and a member of the Surveyors Institute of Zambia. In addition, she is a Registered Engineer and a member of the Engineering Institution of Zambia. She is also a member of Association for the Advancement of Cost Engineering.

Currently, Dr. Mwiya is a Lecturer in the School of Engineering at the University of Zambia. During her 7 years as an Academician and Researcher, Dr Mwiya developed the Master of Engineering in Project Management programme which has become one of the exemplary and successful postgraduate programmes in the school of engineering. Her research area is artificial intelligence in cost estimation of roadworks. Dr Mwiya has over 25 years post-qualifying experience in the practice of Cost Engineering, Quantity Surveying, Construction and Project Management. She has vast experience in supervision of projects and preparation of contract dossiers for various organisations. She has represented major clients such as the Zambia State Insurance Corporation Ltd, Indeco Estate Development Company Ltd and National Housing Authority on complex construction projects.