Hardin discovered his love for teaching during his graduate career. He taught undergraduate laboratory courses in biology and anatomy and physiology while conducting research in support of his doctoral degree. At the time, he focused much of his studies and research on matters of human health.
Hardin joined the Noble Research Institute in 2008 and entered the world of agricultural research. For the next three years, he served as a postdoctoral fellow in Professor Zeng-Yu Wang's laboratory, where he and a team of researchers worked to improve switchgrass as a forage and biofuel crop.
During this time, he volunteered in various Noble Research Institute youth education events. He led visiting students through scientific experiments aimed at demonstrating the fundamental aspects of life science and vital nature of research to agriculture.
In late 2012, he was a natural to become the founding manager of the youth education outreach program and lead its efforts to share the importance of agriculture and agriculture-related research with students, teachers and others.