Mr Nkume holds a National Certificate Vocational (NCV) Level 3 in electrical engineering from Northlink College.

He joined the University of Cape Town (UCT) in 2016, serving initially in the Department of Student Affairs. He is now a Campus Protection Officer.

Mr Nkume is a member of UCT’s Institutional Forum. He is also a member of, and shop steward for, the Democratised Transport Logistics And Allied Workers Union, which organises in pay classes 2–12 at UCT.