She has worked locally, nationally and internationally in the field of adult education/adult literacy for more than 30 years. She served as consultant to the United Nations in field assignments on literacy in France, Senegal and Somalia. Professor Ntiri completed her doctorate in adult education at Michigan State University after a pre-doctoral assignment with the International Institute for Labor Studies and the International Labor Office in Geneva. She holds consultative status with the International Institute of Education in Hamburg relative to the International Conference on Adult Education (CONFITEA).