2006

Visiting Research Associate, Rutgers University, NJ. Research: developing high lysine maize

Research Associate, CIMMYT-Nairobi. Research: support MAS activities in NARS-Africa

2002-2006

Visiting Scientist, Kenya Agricultural Research institute (KARI). Research: implementation of MAS in maize breeding

2000-2002

Post Doctoral Fellow, Cornell University Medical School, Department of Neurology and Neuroscience. Research: Alzheimer disease

2000

PhD Student- Kagoshima University, Japan