Hamza is the Managing Director (MD) and Chief Executive Officer (CEO) of Nigeria Police Force Pensions Limited (NPF Pensions Limited). He was the past Commissioner for Trade and Industry in Gombe State, founder Managing Director and Chief Executive Officer of Apt Pension Funds Managers Limited, founder and Managing Director of Gombe State Investment and Property Development Company Limited, Vice-Chairman (Supervisory Councillor), Primary Health Care, Yalmatu/Deba Local Government Area of Gombe State, Supervisory Councillor for Education and Works, Gombe Local Government Area of Gombe State.