Cahill is the Chief Design Officer and National Architecture Practice Leader for HNTB, where he implements national design programs and ensures a consistent level of quality for architectural projects across the firm. As a Senior Vice President and Design Principal, he has delivered award-winning work, including Levi’s Stadium — the nation’s first NFL stadium to achieve LEED Gold certification. He has received numerous honors and awards, including induction to American Institute of Architects (AIA) College of Fellows for contributing to the advancement of built environments and directing HNTB’s national architectural practice. He also served on AIA’s National Board of Directors and was recognized as a Richard Upjohn Fellow in 2001.