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Diane Zimmer is a seasoned professional in the construction management field, currently serving as Managing Director at J.S. Held LLC since July 2019, with prior roles as Assistant Managing Director and Director. Expertise encompasses a range of positions held at leading companies, including Project Executive at Leopardo Companies and Senior Project Manager at Lend Lease, where significant projects included the Trumpf Smart Factory and the Abbvie Network Optimization Program. Early career experience includes roles as Project Manager at Kenny Construction Company, Project Engineer at Gilbane Building Company, and Design Engineer at GRAEF, contributing to numerous infrastructure projects. Diane holds an Executive Management of Design & Construction certificate and a Master's degree in Civil Engineering Project Management from Northwestern University, in addition to a Bachelor's degree in Civil Engineering from Rice University.