Alhaji Gusau began his career in the Nigerian Civil Service when he joined the Sokoto local authority works department as a Junior technical staff in November 1939.

During his time there, he was promoted and assigned as the "wakilin ayukka" officer in charge of construction at the Gusau aerodrome.

In 1955, he was made resident engineer of Sokoto local authority works where he was responsible for all buildings and roads in the emirate.

He was the Chief estate engineer of Ahmadu Bello University, Zaria from 1967 to 1972 where he was in charge of estates, which included buildings (both design and construction), the campus road network and water supply; in 1972 he was appointed the civil commissioner for the North western state overseeing all civil works in the region.

Sir Ahmadu Bello was appointed teacher at Sokoto middle school upon completion of Katsina college.