In 2003 Mauro started working at the first unit of the Swiss Federal Police fighting cybercrime. Later on, he collaborated to the establishment of MELANI, Switzerland's first centre for public-private partnership on cybersecurity for critical infrastructure. Back in 2013, he set up and led the Cyber Threat Intelligence Division within the Department of Defence in Bern. In 2021, he was tasked to create the Vulnerability Management unit within the National Cyber Security Centre NCSC.ch, leading several projects, among them the first bug bounty program of the Swiss government. He then joined the International Committee of the Red Cross ICRC one year later, as advisor on new digital technologies of warfare.