He received a BS in biology from The University of Texas Arlington in 2002. In 2008 he earned his PhD in cell biology and genetics from The University of North Texas Health Science Center working with Dr. Rouel S. Roque on the molecular regulation of cardiac stem cell growth and differentiation in 3-D cardiac micro-tissue models. Bartosh joined the Texas A&M University Health Science Center as a post-doctoral fellow in 2008 working in the laboratory of Dr. Darwin J. Prockop to develop therapies with mesenchymal stem cells from the bone marrow, and in 2011 accepted a position as supervisor of the flow cytometry/cell sorting core laboratory at the Institute for Regenerative Medicine. Bartosh joined the faculty of the Texas A&M University Health Science Center in 2012.