[2] DeVincenzi worked at his father's bakery as a young man, located in the south district of Gibraltar.
DeVincenzi ran in the 1969 Gibraltar general election as a member of the Integration with Britain Party.
He was elected as one of the 15 members of the House of Assembly, and made minister for Education and Recreation,[3] notably opening the Victoria Stadium, now a part of the wider Bayside Sports Complex.
[3] DeVincenzi founded Lloyd's Enterprises Ltd, in Gibraltar, a food importer and supplier company, which still operates under the same name and purpose.
After leaving office as a minister, and with the border between Gibraltar and Spain closed, DeVincenzi and his family immigrated to Calgary, Alberta, Canada in November 1978.