Mr Omuse defeated Mary Emaase, the previous Member of Parliament for Teso South, in the 2017 elections. Mr Omuse ran on an ODM ticket. Prior to his election, he worked as an accountant at Kajiado County and at Olekjuado County Council. Mr Omuse also served as a Town Treasurer at the Town Council of Malaba. He has a diploma in Business Management from Gretsa University and an Accounts Technician Certificate from Government Training Institute Mombasa.