Trombino's first job was with Earth Tech. After earning degrees in economics and civil engineering at the
University of Wisconsin, Trombino spent seventeen years at the
Wisconsin Department of Transportation, working his way up to Operations Director, Highway Division. In May 2011, he took over the director role at the Iowa Department of Transportation, a role he held until he unexpectedly resigned on November 28, 2016. In January 2017, he became president of McClure Engineering Company, a position he currently holds. While director of the Iowa DOT in 2012, he announced a policy to deny driver licenses to Iowa residents who were part of the
Deferred Action for Childhood Arrivals program. ==Administrator of the Federal Highway Administration==