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Marwan (Marvin) A. Hamdan is an experienced construction estimator currently employed at The Walsh Group, engaged since November 2023. Previously, Marwan served as a project estimator at O'Brien Construction Company and Brix Corporation, and as an estimator/quality control professional at Walsh Construction Company. Marwan's career began as a project engineer with The Garrison Company and included a decade at RAM Construction Services as an estimator/project manager, contributing to significant projects such as the New Midfield Air Terminal Parking Deck at Detroit Metro Airport. Marwan's educational background includes a Bachelor of Science and a Master of Science in Construction Management from Eastern Michigan University, along with an Associate Degree in Architectural Technology from Santa Ana College.