Dr. Postle is a full professor in the Combinatorics and Optimization Department at the University of Waterloo. From 2015-2025, he was a Tier 2 Canada Research Chair in Graph Theory. He received his Ph.D. in the Algorithms, Combinatorics and Optimization program from Georgia Tech in 2012 under the supervision of Robin Thomas. In 2016, he was awarded the Early Researcher Award from the province of Ontario. In 2021, he won the Coxeter-James Prize from the Canadian Mathematical Society. Dr. Postle is known for his revolutionary work in graph theory, graph coloring and design theory.