Gilles has found many ways to give back to his community throughout his life. He worked for nearly thirty years as a teacher, school principal, President of the PEI Teachers Federation (PEITF) and Superintendent of the Commission scolaire de langue française (CSLF).

Gilles owned and operated several business ventures over the years and has chaired the board of the Évangéline Rec Centre and the Évangéline Co-op Funeral Home. He sat on Abram-Village municipal council, was Vice President of the Organizing Committee for Jeux d’Acadie, and is an active volunteer for the Acadian Festival.

Gilles was elected as the MLA for District 24, Évangéline-Miscouche, on April 3rd, 2023 and served as Minister of Economic Development, Innovation and Trade until October of 2024 when he was appointed as Minister of Environment, Energy and Climate Action. He also serves as Minister Responsible for Acadian and Francophone Affairs.

Gilles and his wife Leonie and their sons André, Alain and Martin call Abram-Village home.