| 2020 to date | Deputy Director Forestry Support Services |
| 2019 to Date | Head of Monitoring and Evaluation KEFRI |
| 2010 to 2018 | Regional Director Coast Eco Regional Research Project |
| 2009 to 2010 | Officer in Charge of Nyeri Forestry Research Sub Centre |
| 2007 to 2009 | Acting Centre Director Kitui Regional Research Centre |
| 2003 to 2007 | National Coordinator; Action Research into the Poverty Impacts of Participatory Forest Management Project |
| 2001 to 2003 | Acting Centre Director Gede Regional Research Centre |
| 1996 to 1998 | Officer-in-Charge Gede Forest Research Station |
| 1994 to 1995 | Acting Head Plants for Life programme |
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