He obtained the Baccalaureate in 1977 in Electronics and University Degree in 1988 in Political Science in Economic Law and Social Sciences.

He started his working career very early in 1975, first as electrical technician in small maintenance company in Milan and as of 1976 as technical engineer and buyer in Multinational Industry (GTE Telecomunicazioni, SINGER Sewing machine). In 1987 Sergio joined the biggest Italian bank (BANCA NAZIONALE DEL LAVORO) as Technical Buyer.

In March 1989 was employed at the European Space Agency (ESA) in its ESTEC establishment in The Netherlands initially as Business Unit Controller and as of 1994 as Contracts Officer in the ESA Procurement Department.

In June 2000 he moved to the ESRIN establishment in Frascati (Rome) initially as Contracts Officer and as of 2005 as Head of General Procurement Services for ESRIN and ESOC the German ESA site leading a team of 4 staff.

In January 2014 Sergio was appointed Head of the Operations and Ground Segments Procurement Division having the responsibility of Contracts and Purchases for the ESA establishments in ESOC Germany and in ESRIN Italy, responsible for a total annual budget of about 600 Million €. He managed a team of 22 staff deployed in the two establishments from 12 different Nationalities with competences in legal, commercial and technical domains.

He retired from ESA in 2021 but continues to cooperate with Tor Vergata University with lectures mainly on the ESA Procurement system and on ‘Project Work’ courses on practical and hands-on procurement practices.

In 2024 he conducted a Lab Course in Procurement Management for Space within the Space Business Management Master programme of the Luiss University in Amsterdam.

His main hobby is music, jazz in particular. He plays Tenor Saxophone but enjoys playing Piano, Guitar and Drums as well. He likes reading and running.