He graduated in mechanical engineering at Politecnico di Torino at the age of 22.
He started working for Ansaldo and later for Fiat Mr. Alessio became director of N.S.U. plant in Heilbronn (Germany). At that time N.S.U. was producing motorbikes. After coming back to Italy, he was director of a Fiat plant in Modena that was producing machines for agricolture. Mr. Alessio worked then for Piaggio in Pontedera (PI) and later for Reggiane. At Reggiane he started as technical director, then vice general director and then general director. After the war he spent one year working for IRI in Rome and later he was director of Isotta Fraschini in Milano. In Milano he worked then for two years for Alfa Corse, taking it to win the world championship. After working for Alfa, he worked for Gondrand and was sent to Brasil. His last job was at Pellizzari company in the sorroundings of Vicenza.