Previously, he served as the Principal Secretary, State Department for Fisheries, Aquaculture and the Blue Economy, Ministry of Agriculture, Livestock and Fisheries. He has also served in the same capacity at the Ministry of Education, and as the Director of the School of Biological Sciences at the University of Nairobi.
Prof. Ntiba has conducted research with numerous institutes and laboratories, such as the Kenya Marine and Fisheries Research Institute, and the Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Sufolk, United Kingdom.
He holds a BSc in Biological Sciences and a Master’s degree in Hydrobiology from the University of Nairobi and a PhD in Fisheries Biology from the University of East Anglia, United Kingdom. He was awarded Doctor of Business (DBA) specializing in Fisheries Management (Honoris Causa) of Commonwealth University, Dubai. He is Fellow of the Commonwealth Academy of Leadership and Management (CALM) awarded by the Commonwealth University, United Kingdom.