Prof. Keya is a retired professor of Land Resources Management and Agricultural Technologies, University of Nairobi and Chancellor of Dedan Kimathi University of Science and Technology. He attended Wang’apala, Kisii and Kakamega schools and graduated from Makerere University (BSc.), Cornell University (MSc and PhD.). He is an author/co-author of over fifty scientific journal articles and proceedings, eleven books/monographs and has delivered several invited conference papers. He is credited with preparing technical reports on issues pertaining to natural resources management, science/technology, and policy including the environment. Prof. Keya has been principal investigator in many research projects addressing soil health/fertility, one of his accomplishments being the development, production and promotion of legume inoculants in East and Southern Africa, jointly commercialized as BIOFIX by the University of Nairobi and MEA Ltd. He is a member of over ten scientific societies and academies. He has consulted for national Governments and international organizations such as FAO, UNEP, UNESCO, World Bank, UNDP, AGRA and NGOs. He holds distinguished awards from the African Academy of Sciences/Ciba-Geigy Gold Medal & Soka Gakkai Award of Highest Honor, consisting of Gold Medal; University of Nairobi Staff Merit Award for outstanding contribution towards the University’s Mission and nine other academic prizes. He participated either as Chair or Board Member of 35 organizations, among them national and international organizations and University, Senates. He was Board Chair Kenya Forestry Research Institute (KEFRI); Directors, Kenya Agricultural Research Institute (KARI); African Centre for Technology Studies (ACTS); Member of ICIPE Governing Council; Tribunal member of Kenya Industrial Property Organization and UNESCO/UNEP/ICRO Microbiology Panel. His National and international appointments and responsibilities include Director of Microbiological Resource Center (MIRCEN) 1976–1978; Chairman, Department of Soil Science, University of Nairobi, 1976–988; Professor of Soil Science (1981-1998); Dean, Faculty of Agriculture, 1984–1988; Principal, College of Agriculture & Veterinary Sciences April-June 1988; Vice-Chancellor, Moi University, 1988–1994; Executive Secretary, Technical Advisory Committee, Consultative Group on International Agricultural Research/Food and Agriculture Organization of the United Nations, 1996–2000; Executive Secretary, interim Science Council, CGIAR/FAO, 2001–2003; Assistant Director General Research & Development- AfricaRice Center (WARDA) 2004-2007; Advisor to the Director General Africa Rice Center (WARDA) 2008 - Jan 2009. In his professional endeavors he travelled widely in all the five continents. Having served in two international organizations, three public universities of Makerere, Moi and Nairobi his successive and progressive professional pursuits shaped his science, technology, policy, and educational management.