Jan 2017 –date:Assistant Regional Director/Research Scientist II, Nyeri Forestry Research Sub Centre, Kenya Forestry Research Institute (KEFRI), P.O Box 12069-09010Nyeri, Kenya
March 2013 –Jan 2017:Assistant Research Scientist, Kenya Forestry Seed Centre, Kenya Forestry Research Institute (KEFRI), P.O Box 20412–0200, Nairobi, Kenya.
March,2010–Mar,2013: Assistant Research Scientist, Turkana Forestry Research Sub Centre,Kenya, Forestry Research Institute (KEFRI), P.O Box 99–0100, Lodwar, Kenya,
Sept,1996–March, 2013: Laboratory Technologist, Kenya Forestry Seed Centre,KenyaForestry Research Institute (KEFRI), P.O Box 20412 –0200, Nairobi,Kenya.
Jan 1992-Sept,1996:Laboratory Technician trainee, Kenya Forestry Seed Centre, Kenya Forestry Research Institute (KEFRI), P.O Box20412 –0200, Nairobi, Kenya.
July 1988 –Jan 1992:Laboratory Technician trainee,Kakamega Forestry Research Sub Centre, Kenya Forestry Research Institute (KEFRI), P.O Box 99Kakamega,Kenya