Oscar Antommattei is a seasoned civil engineer with extensive experience in concrete production and materials engineering, currently serving as the Chief Concrete Engineer & Materials Engineering Director at Kiewit since May 2012. Prior roles include Project Manager/Engineering Consultant at Carrasquillo Associates, where responsibilities encompassed managing construction projects and forensic investigations related to concrete structures. Earlier experience as a Graduate Teaching/Research Assistant at Clemson University involved instructing undergraduate courses and conducting research on concrete properties. Oscar's career also includes positions in project engineering at Caribe Tecno, quality engineering at CEMEX, and structural inspection for FEMA projects. Oscar holds a Master’s degree in Civil Engineering with a focus on Construction Materials from Clemson University and a Bachelor's degree in Civil Engineering from the University of Puerto Rico.