Originally drafted by the Baltimore Orioles in the 34th round of the 1987 amateur draft, Dressendorfer chose not to sign. He was then drafted by the Oakland Athletics in the first round (36th pick overall) of the 1990 MLB amateur draft. Dressendorfer would make his Major League Baseball debut with the Oakland Athletics on April 13, 1991, and appear in his final MLB game on May 21, 1991.
Dressendorfer was the Director of Baseball Operations & Outreach for the Round Rock Express, the AAA affiliate of the Houston Astros. He now is a Business Development Project Manager for the After Point of Sales Services organization within Dell Inc.