Dennis served as a Staff Sergeant in the U.S. Army from 2008 to 2015 and deployed in support of Operation Enduring Freedom. He was the senior combat medic for an infantry company and conducted counter-insurgency operations in and around Ghazni, Afghanistan. Dennis currently is a member of the Real Estate and Branding Subcommittee.
Previously, he worked as the regional director for a member of the United States Congress where he worked to improve the lives of local veterans. Dennis is now pursuing a dual-degree, concurrently earning an MPP at the Harvard Kennedy School of Government and an MBA from the Tuck School of Business at Dartmouth.