Sean McGillicuddy began working at Maginniss + del Ninno Architects after graduating Magna Cume Laude from Virginia Tech with a professional Bachelor of Architecture degree. During his education, he held internships at Neighboring Concepts and FreemanWhite, in Charlotte, North Carolina. He studied abroad in Canton Ticino, Switzerland, where he engaged with local building traditions and customs. 

Mr. McGillicuddy has worked on a wide variety of architectural design experiences, ranging from large new medical facilities to small adaptive reuse construction, and has interacted with a diverse group of clients. 

Mr. McGillicuddy served as the Vice President of the Alpha Rho Chi Metagenes Chapter, the professional fraternity for architecture and the allied arts at Virginia Tech. Mr. McGillicuddy is an active member of AIA Virginia.