LESLIE SHOEMAKER, appointed president of Tetra Tech in 2019, leads its global operations, strategy, and technical innovation programs. She joined the company in 1991 and has held technical, strategic, and operational responsibilities. She has also served as chief sustainability officer for over a decade, guiding the program to recognize the climate-positive impacts of the company’s projects while continuing to reduce carbon impacts throughout its operations. She has focused on connecting Tetra Tech’s 21,000 high-end scientists, engineers, and technical specialists to develop sustainable solutions by Leading with Science® in water, environment, renewable energy, sustainable infrastructure, and international development.

Dr. Shoemaker’s technical expertise is in the development of analytics and modeling as decision tools to enhance the environment, especially through watershed modeling systems and optimization of sustainable nature-based solutions. She was part of the Louisville MSD/Tetra Tech team that won the 2019 INFORMS Franz Edelman Award for operations research. She led the development of some of the earliest studies on integrated watershed management programs for the US Environmental Protection Agency and supported the landmark development of the BASINS modeling system. Her early work on watershed modeling included the development and application of tools for nonpoint source simulation such as the Generalized Watershed Loading Function model.

Dr. Shoemaker holds a BA in mathematics from Hamilton College, an M.Eng from Cornell University, and a PhD in agricultural engineering from the University of Maryland.