She served as the Deputy Secretary General of the East African Community, (EAC), responsible for Productive & Social Sectors.
She was awarded a Master of Arts degree in development studies by Makerere University.
She entered politics in 2001, contesting the parliamentary seat of Adjumani District Women's Representative.
She won and was again re-elected in 2006 on the National Resistance Movement political party ticket, and served in the parliament until 2011.
[6] In April 2012, Eriyo was appointed Deputy Secretary General for Productive and Social Sectors at the East African Community.