Bachelor of Science in Chemistry & Education, University Dar es Salaam, Tanzania, E. Africa, 1982. MED, University Massachusetts, Amherst, 1987. Master of Science in Chemistry, Hampton University, Virginia, 1989.
Doctor of Philosophy in Chemistry, Virginia Polytechnic Institute, Blacksburg, 1994.
Lecturer Dar es Salaam Teacher's College, 1982—1986. Assistant professor Slippery Rock University, Pennsylvania, 1994—1996. Lecturer Egerton University, Kenya, 1996—1999, senior lecturer, 1999—2005, associate professor, 2005—2010.
Professor Jomo Kenyatta University Agriculture & Technology, since 2010. Consultant Japan International Cooperation Agency, Kenya, 2000—2002, Carlita Environmental Consultancy, 2002. Director, Chief Executive Officer JKUAT-ARUSHA Campus, since 2010.
Member of Great Lakes Instrumentation Collaboratory Program, Minority Health International Research Initiative (advisory council since 2005), Kenya Chemical Society.
Married Hawa Kaseko Mavura, July 22, 1989. Children: Beresha Mnaya, Jusuph Mnaya.