 Before being the clerk for the Privy Council office, Wernick was the deputy clerk under predecessor Janice Charette.He has held several other positions in the Privy Council office and as Associate Deputy Minister for the Department of Canadian Heritage.Wernick worked at the constitutional affairs unit of the Federal Provincial Relations Office from 1991 to 1993 and in its successor unit when the Office was merged into the Privy Council Office in 1993, leaving in the summer of 1996.