Prior to starting her Toronto based practice in 2002, Jillian's professional experience included James Cheng Architects in Vancouver and Skidmore Owings and Merrill Architects in San Francisco. From 1997-2002 she was an Associate with Hariri Pontarini Architects, where she was a key designer of McKinsey & Company's Canadian headquarters, and the Schulich School of Business at York University, which received a prestigious Governor General's Medal in Architecture.

Jillian Aimis received a bachelor degree from the University of Florida in 1989 and a Masters in Architecture from Columbia University in 1993.