Heubach made his first team debut on 11 December 1994 in a match against MVV. After three seasons in FC Twente's first squad, and merely playing a few league matches for the side, he was loaned out to the team he made his debut against, MVV from Maastricht.
Heubach first took to the field on 11 December 1994 in a contest against MVV. Following three seasons within FC Twente's primary squad, and only participating in a handful of league matches for the team, he was temporarily reassigned to the club where he initially made his appearance, MVV from Maastricht.