Mattie McKinnis

Mattie McKinnis is an Environmental Engineer at Barr Engineering Co., having been with the company since June 2021. Prior experience includes an Environmental Engineering Intern position at Phillips 66 from May 2020 to August 2020 and a Hydrology Intern role at the Arizona Department of Water Resources from May 2019 to September 2019. Mattie McKinnis holds a Bachelor of Science degree in Environmental Engineering from the Colorado School of Mines, completed in 2021.