Since 1984, he has taught law at the Université du Québec à Trois-Rivières (UQTR) and was a member of the National Assembly of Quebec.
In the spring of 2005, he was appointed as the Parliamentary Assistant to the Minister of Economic Development, Innovation and Export Trade.
Prior to serving as a member of the Quebec legislature, he maintained a private civil and commercial practice in municipal and administrative law.
In the 2007 Quebec elections, Gabias lost the seat to the Action démocratique du Québec's Sébastien Proulx who had received the support of Trois-Rivières mayor Yves Lévesque during the campaign.
[1] He served as board chair of the Musée québécois de culture populaire from July 2013 until March 2014, and was secretary general of UQTR from February 2008 until May 2014.