Naomi worked as teacher at Narok Secondary school (1975 -1976), Kenya National Archives, Head, Oral Traditions Division (1976-1979); University of Nairobi, Research Fellow and Lecturer, Institute of African Studies (1979-1990); Coordinator, Arid Lands Resource Management (ALARM), a network for Eastern Africa (mainly on policy issues touching on pastoralists); Executive Director, Arid Lands Institute, an NGO Policy and concerned with policy and Pastoralist development concerns 1990 to 2016. Also consultant in development issues in Kenya & in East Africa and also played advisory role and member of various Working Groups including for African Commission on Human & Peoples’ Rights (ACHPR). Presently involved in County/community issues relating to documentation of historical and cultural matters including establishment of a museum & cultural centre for the County Government of Kajiado. Founder of Foundation for Indigenous culture and knowledge systems. Huge interest in women issues.