The US$360mn contract was awarded to Sacyr, which also won the contract for another hospital in the same area worth US$161mn.
Brazil's president-elect could also scrap federal airport authority Infraero.
The concessionaire of line No. 2 of the Lima metro committed to greater spending and employee hiring next year, as the government strives to accelerate key infrastructure projects.
The contract entails carrying out the final design and supervising construction of a bypass for Managua.
The plan involves reactivating the line connecting capital Buenos Aires with the city of General Alvear in Mendoza province.