Joined the Kenya Forestry Research Institute, KEFRI in 1990
Research Positions
Assistant Research Officer 1990–1994
Research Officer II 1994–1998
Research Officer I 2002 -2006
Senior Research Officer, 2006 -2010
Principal Research Officer 2010- 2016
Chief Research Officer 2017- to date
Adminstrative Responsibility
A Member Wood Study Advisory Committee on Proposal Development on the subject of wood carving industry in Kenya (Collaborative project between Kenya Forestry Research Institute, National Museum of Kenya, Kenya Carvers Co-operative Union and UNESCO)-1992-1993
Technical coordinator – Economic valuation of Ecosystem Services- Kenya Water Tower Climate Change Resilience Project, US Forest Service/KEFRI -2016-2018
Deputy Regional Director Lake Victoria Eco-region Research Programme-2010- 2018
Regional Director 2018-to date
National consultant, FAO/KEFRI The Restoration Initiative project on Ecosystem valuation of Mukogodo landscape 2020