Boulay played at Kent School in Kent, Connecticut. In 2001, he led Kent to the New England Class A Championship in football as a running back, defensive back, and team captain. Following the season, Étienne was voted the New England Class A Player of the Year for 2001. In high school, he attended College Jean-Eudes in Montreal, Quebec, playing defensive back for the football team.
College career
He played for the New Hampshire Wildcats from 2002 to 2005. He played 13 games in 2004, making 65 tackles and intercepting three passes. He also registered 66 tackles and five interceptions in 2005.
Professional career
Montreal Alouettes
He was drafted in the second round (16th pick) in the 2006 CFL Draft by the Montreal Alouettes. That season, he finished fifth in the CFL with 20 special teams tackles and won the East Division Most Outstanding Rookie, 2006 and the Alouettes Most Outstanding Rookie, 2006 awards.
New York Jets
On January 18, 2008, he signed a contract with the New York Jets. He was waived on July 24 following the signing of first-round draft pick Vernon Gholston.
Return to Montreal
Boulay returned to Montreal in August 2008.[1] On June 15, 2012, Boulay was released by the Alouettes.[2]
Toronto Argonauts
On July 15, 2012, Boulay signed a one-year contract with the Toronto Argonauts, later winning the 100th Grey Cup.[3] He was released on December 19, 2012.[4]