[1][2] Ukaga started her career as a research officer with UNDP/WORLD BANK/WHO Onchocerciasis Control Project in Achi, Oji - River Local Government Area, University of Nigeria Teaching Hospital Enugu, Department of Pharmacology, Enugu, Nigeria (1989 – 1992) where her duties consisted mainly of the collection, examination and identification/analysis of parasitological data in the environs.

[4] Ukaga was the national president of the Parasitology and Public Health Society of Nigeria 2016 - 2021,[5] an association that champions and brings visibility to Neglected tropical diseases[6] (NTDs).

As the president, she endorsed the Abu Dhabi Declaration of Support for an SDG Global Indicator for NTDs.

[7][8] Ukaga was in the team that drew up a framework to guide African nations in creating master-plans for the control and elimination of NTDs in line with WHO Roadmap, 2030.

She is a council member (African region), and serves on the Research Grant Committee of the International Society for Infectious Diseases (ISID).