2024 40 Under 40: John Constantinide, PE, CEM, LEED AP BD+C, F.SAME, 39

Range Engineer, U.S. Space Force; MS, Environmental Resource Management, Florida Institute of Technology

Constantinide’s training and experience spans the sciences, engineering and leadership. In his role with the U.S. Space Force, he is the subject matter expert advising squadron and installation leadership on facility and infrastructure resolutions, leading engineering innovation projects for Space Launch Delta 45. He oversees work by energy managers on energy reduction and resilience for the Delta’s utility program supporting the world’s most active spaceport. His work has resulted in hundreds of thousands of dollars saved in process efficiencies and contract modifications. He also oversees pilot, innovation and resilience programs investing millions of dollars in facilities and infrastructure. Constantinide has contributed to the built environment knowledge base of the government and the industry through five publications in the ASHRAE Journal, one publication in The Military Engineer and authorship of four ASHRAE Handbook chapters and one white paper. He also has been a guest lecturer at several universities and participated in podcasts, conferences and local seminars on topics ranging from how indoor air quality improves workforce health and resilience to environmental controls of space habitats and transport vessels. He is a director and regional chair in ASHRAE, chair of ASHRAE Technical Committee 9.13 Space and public sector co-chair and incoming vice chair of the Society of American Military Engineers Energy and Sustainability Community of Interest, which reflects his continued dedication to advancing science and engineering in the built environment. Outside of work, Constantinide enjoys playing tennis with friends, hiking on natural parks and trails, prayer, meditation and reading on philosophy and theology.