Conlon was part of the Florida underground metal scene until 1994 when Orlando-based Chuck Schuldiner hired him to play with the American death metal band Death. He recorded the album Symbolic and went on the subsequent international "Full of Hate Festivals" tour. Conlon joined Monstrosity, another Florida death metal band, in 1995 and played on the albums Millennium (1996) and In Dark Purity (1999).
It was announced in August 2011 at Blabbermouth.net that Conlon was recruited to join "Arizona-based death/thrash metallers Sargon" which went on an undefined hiatus.
Conlon played on Azure Emote's "The Gravity Of Impermanence" in 2013.