1999 Visiting Professor, Agr. & Biological Engineering, University of Florida
1997 Courtesy Professor, Crop Simulation and GIS, University of Florida
1996-97 President, Nigerian Meteorological Society. Responsible to bring together professional to advise governments on potential impact of weather and climate on food security and human welfare
1996-98 Crop Ecologist/Systems Modeler, IITA. Leader for development, distribution and implementation of decision support systems for ecologically sustainable and economically viable agrotechnology targeting.
1992-95 Head of Agroecological Studies Unit, IITA. 1994-95 Designed and managed French government funded institution and human resource development project in 14 countries. 1992-94 mobilized research organizations in eight-countries with Dutch government funding to form consortium for valley ecosystems development.
1989-92 Agroclimatologist, IITA, Ibadan, Nigeria. Developed a network of data gathering stations and created georeferenced databases in collaboration with local, regional and international agencies. Regional characterization of eighteen African countries was completed to initiate wetlands development project.
1988 Assistant in Agricultural Engineering, University of Florida, Gainesville, Florida –
USAID Funded project for developing weather simulation models for studying trends in climate and future climate change.
1987 Visiting Scientist, Uni. of Hawaii, Honolulu, Hawaii – Worked with a USAID funded project (IBSNAT) to explore the potential of computer based technology to agrotechnology transfer to Third World economies
1982 Ph. D. Graduate Research Assistant, Uni. Of Florida
1980 M.S. Graduate Research Assistant, Uni. Of Georgia
1979 Engineer Trainee, International Crops Research Institute for Semi Arid Tropics (ICRISAT), summer
1978 Engineer Trainee, Tractors and Farm Equipment, Co. Ltd., Madras, India, summer
