After earning a degree in civil engineering, earlier in his career at Eni he was involved in multiple development projects in Italy and overseas (spreading in many countries including Far East, Nigeria, Libya and Egypt) with increasing levels of responsibility. Between 2004 and 2010 he was Member of the Management Committee and General Manager of the joint (National Oil Company and Eni) operating companies in Libya and in Egypt.
From 2017 to mid 2019 Gabriele was the President and CEO of Eni Operating US, an Eni fully owned Company responsible for running oil and gas operation, both as operator and in partnership with other operators, in the United States of America. During this period he was also acting as Deputy Executive Vice President for the Americas Region.
From mid 2019 until mid 2021 he has covered the position of Executive Vice President for Eni Worldwide Development Projects with the responsibility of the execution of several multibillion projects.