Dr. Gelisen has been in the construction industry for more than 25 years and he has been continuing his research work as Construction Management Program
Coordinator at Bahcesehir University. He has participated in several mega construction projects. He is registered as a Professional Engineer, Project
Management Professional, LEED AP BD+C, Envision Sustainability Professional, and a Six Sigma Yellow Belt.
He has served as the Vice President of Federation of Turkish American Associations and as the head of the technology advancement advisory committee. He also served as the President of Society of Turkish American Architects, Engineers and Scientists in 2009. He holds a Ph.D. degree in Construction Management from Polytechnic Institute of NYU, a M.S. degree in Computer Science from Columbia University, a M.S. degree in Structural Engineering from Lehigh University, and a B.S degree in Civil Engineering from Middle East Technical University. He is a graduate of TED Ankara College.