Sean Leeper, P.E., PMP, currently serves as an Aviation Project Manager at HDR, a position held since October 2025. Previously, Sean worked at Stanley Consultants from July 2013 to October 2025, where roles included Project Manager and Civil Engineer/Project Manager. Earlier experience includes a tenure as a Civil Engineer at Martin & Whitacre Surveyors & Engineers, Inc. from June 2012 to July 2013 and as a Surveyor and Civil Engineer Intern at the Clinton County Secondary Road Department in 2009. Sean earned a Bachelor of Science in Civil Engineering from Iowa State University between 2007 and 2011.
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