After 4 seasons as assistant coach, Cornaire served as SUNY Geneseos offensive coordinator since joining the staff. Cornaire helped lead the Knights to SUNYAC Championship appearances in both 2019 and 2021 and was a key factor in increasing the team's offensive productivity. Since his arrival, the Knights have nearly doubled their goals per game average, improving from 6.79 goals per game in 2018 to 12.4 goals per game in 2020 and 2021 combined. Cornaire mentored 6 USILA All-American Honorable Mentions, 14 All-SUNYAC selections, including Co-Defensive Player of the Year, Rookie of the Year and eight First Team All-Conference selections.

Cornaire came to Geneseo after serving as the Offensive Coordinator for the Roberts Wesleyan mens lacrosse team from 2015-18. The offense saw an increase in Goals and Points per game in each of his three seasons. In his second year, Cornaire led his man-up offense to as high as fourth in the National Ranking (45.7%) and finished 10th in the Nation (38%). In his last season with RWC, Cornaires offense ranked 6th nationally in Shooting percentage (36%), just behind three of the Semi-Finalists in the NCAA Tournament.

After graduating from Rush-Henrietta, Cornaire played men's lacrosse at Monroe C.C., where he ranked 13th in the nation for total points. He went on to finish his career at Roberts Wesleyan for their inaugural 2012 season. He scored the first goal in the history of the program and led the nation with 4.8 points per game during that season. He Graduated from Roberts in 2014 with a B.S. in Marketing.

Cornaire is a Rochester native and resides in Henrietta with his wife Elizabeth, three daughters Sawyer, Shea, and Elle, and Son, Leo.