[4] In November 2019, the University of Toronto's Munk School of Global Affairs and Public Policy announced that Sabia would be its new director.
[9] Sabia held a number of senior positions in Canada's federal public service during the 1980s and early 1990s, including Deputy Secretary to the Cabinet of the Privy Council Office.
Sabia's supervisor at that time, Clerk of the Privy Council Paul Tellier, left the public service in the early 1990s to assume the presidency of a Crown corporation, Canadian National Railway.
He left Canadian National Railway to join Bell Canada Enterprises in 1999 and became chief executive in 2002, succeeding Jean Monty.
In 2007, the BCE board of directors accepted an offer from the Ontario Teachers' Pension Plan to privatize the telecommunications company.
On March 13, 2009, Sabia was named chief executive of Caisse de dépôt et placement du Québec (CDPQ), succeeding Fernand Perrault.
[19] On December 6, 2020, it was announced that Sabia would replace Paul Rochon as Deputy Minister of the federal Department of Finance.