Maarika Paul was named senior vice president and CFO at the C$151.7 billion (US$158 billion) Caisse de Depot et Placement du Quebec, Montreal.
Ms. Paul will oversee treasury and financing activities at the fund, according to a Caisse news release.
She succeeds Ghislain Parent, who left in June 2010; fund officials didn't say why Mr. Parent left.
Ms. Paul previously worked in several senior financial management positions at BCE Inc.
Caisse spokesman Maxime Chagnon could not be reached for comment.