Amateur

Esposito played college baseball for the University of Connecticut, and in 1999 he played collegiate summer baseball with the Orleans Cardinals of the Cape Cod Baseball League.^[1] He was selected by the Boston Red Sox in the 5th round of the 2000 MLB Draft.

Professional

Esposito was recalled from the Memphis Redbirds on May 30, 2007, when the Cardinals' starting catcher, Yadier Molina, was placed on the disabled list with a fractured wrist. Esposito made his major league debut June 2 against the Houston Astros as a late-inning defensive replacement for Gary Bennett. He did not have a plate appearance. He returned to Memphis on June 5 after the Cardinals acquired veteran catcher Kelly Stinnett from the Los Angeles Dodgers. In 2008, he played for the Double-A Tulsa Drillers in the Colorado Rockies organization and became a free agent at the end of the season.

Esposito signed a minor league contract with the Astros on January 14, 2009, and was invited to spring training.

Esposito would join Houston roster in 2010 when they expanded their roster in September. He would get two plate appearances on September 18, 2010 against the Cincinnati Reds when he was a late inning replacement for Jason Castro. He was also called up June 24, 2011, but sent back down June 29 without an appearance. On October 10, he elected free agency.

On December 23, 2011, Esposito signed a minor league deal with the Cincinnati Reds with an invitation to spring training.

On May 20, 2012 he was signed to a minor league deal by the Chicago Cubs and sent down to their Triple-A affiliate, the Iowa Cubs.^[2]

In March 2013, Esposito signed with the Pittsburgh Pirates as a player-coach.^[3]