Mezue ahịrịokwu na-esonụ: Site na 1959 ruo 1960, Shagari bụ onye ọsụ ụzọ Federal Minister for Economic Development of independent Nigeria ebe Ministri ya nwere ọrụ maka ịdepụta atụmatụ mmepe 1962 <unk> 1968. Mịnịstrị nke mmepe akụ na ụba nke Shagari bụ onye na-ahụ maka nguzobe nke Niger-Delta Development Board. Site na 1960 ruo 1962, ọ bụ Mịnịsta Federal maka ezumike nka nke mere ọrụ nke Nigerianization nke ndị ọrụ gọọmentị. Site n'afọ 1962 ruo 1965, e mere Shagari onye Minista Federal maka Ọha na Ọchịchị. Site na 1965 ruo mgbe mbụ
N'oge agha agha na Jenụwarị 1966, Shagari bụ Mịnịsta Federal maka Ọrụ ma rụọ ọtụtụ ọrụ dị mkpa gụnyere Eko Bridge Lagos nke bụ nnukwu nkwekọrịta mbụ nke ụlọ ọrụ na-ewu ihe na Germany bụ Julius Berger na Naijiria, na mmecha nke Niger Bridge nke Onye isi ala, Sir Abubakar Tafawa Balewa nyere ọrụ na 1966. N'afọ 1967, a họpụtara ya dịka odeakwụkwọ maka ego mmepe agụmakwụkwọ nke mpaghara Sokoto. Site na 1968 ruo 1969, e nyere Shagari ọkwa steeti na North-Western State dị ka Kọmishọna maka Establishments.