Dennis started his career in glassblowing at Tyler School of Art, part of Temple University, receiving his Bachelor of Fine Arts degree in 2005. Following graduation, he accepted a position at Wheaton Village in Mawville, NJ, home of the Museum of American Glass. There, Dennis was able to continue blowing glass and learning from visiting artists. When presented with the opportunity to teach the art of glassblowing to others while continuing to hone his craft at the Banana Factory, part of the ArtsQuest non-profit, Dennis had to accept. He has remained in the hot shop there since, blowing glass, teaching students, and participating in local Bethlehem, PA events.