While at Carnegie Mellon, he was a varsity football player and played quarterback.
He is currently an adjunct faculty member in the Architecture program at Portland State University.
This research received significant funding support from the National Endowment for the Arts and the National Endowment for the Humanities, and led to his 2003 book, Resplendent Synagogue: Architecture and Worship in an Eighteenth-century Polish Community, which won the "Henry Glassie Award" of the Vernacular Architecture Forum in 2006.
In recent years Hubka has researched workers' housing in Milwaukee and other cities.
Hubka served on the Wisconsin Historic Preservation Review Board for twelve years; during this time he chaired its Architecture Committee.