Guillaume has had a career in public diplomacy, public policy and international relations. Having lived and worked abroad and visited some 30 countries, he has been a consultant to the public, private and associative sectors, in Canada and internationally.

A lecturer at the École nationale d’administration publique, a member of the Raoul-Dandurand Chair and an international observer, he regularly speaks to the media on international news and American politics. A committed social entrepreneur, he is the founder and former executive director of Mission Leadership Québec and is the co-founder of the Collège néo-classique.

He holds a Master’s degree in International Public Administration (Enap), a B.A. in Industrial Relations and certificates in Administration and Law (Université Laval). Appointed Public Policy Scholar at the Woodrow Wilson Center in Washington, D.C., Guillaume is also a Fellow of the Forum of Federations, Action Canada, the United Nations Alliance of Civilizations, the Jeanne Sauvé Foundation and Next City. He is fluent in French, English and Spanish and has a basic knowledge of Catalan.

A son of the Saguenay-Lac-Saint-Jean region and a young father, Guillaume has been living in Montreal for almost a decade.