She had held the offices of Justice, Court of Appeal, Abuja Division and Presiding Justice, Court of Appeal, Kaduna Division. On 3 May 2011, President Jonathan nominated Ukaego with two other Appeal Court Justices to the Supreme Court. In the new arrangement, she will represent the South East geo-political zone in the apex court bench. In a letter to the Senate, Jonathan said their appointment was necessitated by the retirement from service of Justices Niki Tobi, I.F. Ogbuagu, J.O. Ogebe and G. A. Oguntade. Ukaego was appointed an Associate justice of the Supreme Court of Nigeria (JSC) on 23 June 2011.
