Chiedozie Egesi serves as a Cassava breeder at the National Root Crops Research Institute (NRCRI) in Umudike, Nigeria. The main focus of his research has been breeding for resistance to the major pests and diseases of cassava such as the cassava mosaic disease. He research also deals with the biofortification of cassava roots with beta carotene. Dr. Egesi also pioneered and supervised the introduction of molecular marker assisted breeding for important traits in cassava in NRCRI.