In 1994, Oyebanji was appointed Secretary of the committee set up for the creation of Ekiti State, headed by Baba Deji Falegan.
When Nigeria reverted to democracy in 1999, at 32 years old, he was named one of the top advisers to Otunba Niyi Adebayo, the state's first democratically elected governor.
In 2009, he was appointed chairman of the governing board, Citizenship and Leadership Training centre under the federal ministry of youth and sports development (June 2009 – December 2010).
In 2010, Oyebanji was appointed the commissioner for integration and inter-governmental affairs and later Ekiti’s office of transformation strategy and delivery (OTSD) a year later by the administration of Kayode Fayemi.
[8][9] The grievances of the other aspirants were not addressed by the party hierarchy hence, the primary was held, and Oyebanji polled 101,703 votes, unopposed to emerge as the All Progressives Congress governorship flag bearer in the 2022 Ekiti State gubernatorial election.