Dr. Leeper obtained his BS in Biology from Truman State University with the chemist Dr. Anne E. Moody as his research mentor. He then obtained his PhD in Biochemistry from the University of Missouri with Dr. Steven R. Van Doren and Dr. Francis J. Schmidt as co-advisors. After a brief period at LMB-MRC in Cambridge he followed his post-doctoral mentor Dr. Gabriele Varani to the University of Washington in Seattle; later he became part of the Seattle Structural Genomics Center for Infectious Disease (SSGCID).

From 2009 to 2016, Dr. Leeper was an Assistant Professor at the University of Akron in the Chemistry and Biochemistry Department. He also taught at the College of Wooster from in fall of 2016 and spring of 2017 while holding an Adjunct Associate Professor at Kent State University from 2016 to 2018.

In 2017 he joined KSU in the Department of Chemistry and Biochemistry as an Assistant Professor; he was awarded tenure and became an Associate Professor in 2019.

In addition to teaching and performing research at KSU he also manages the Nuclear Magnetic Resonance (NMR) spectroscopy facility. Researchers and educators interested in using the facility should contact him for training and access.