Khelfa served in the National Assembly of Quebec from 1985 to 1994 as a member of the Liberal Party.
He also served on the executive of the Teachers' Union of Sorel from 1976 to 1980 and was president of the Sorel-Tracy Multicultural Group from 1978 to 1980.
Khelfa became a senior management and international development consultant after leaving the Quebec legislature.
He was appointed to the board of directors of the Klondike Star Mineral Corporation on October 12, 2006, and resigned two years later.
[4] This biography incorporates information from Khelfa's entry in the 1994 Canadian Parliamentary Guide (p. 936).