Jason leads GSA's national building enclosure program; including a portfolio of 1700 owned buildings, plus leased building inventory. Prior to GSA, Jason performed private sector design architect roles on a series of GSA Design Excellence and AIA award-winning projects, with a focus on building envelopes. Jason holds a BArch from North Dakota State University and MArch from University of Pennsylvania. He is University of Wisconsin QCxP certified, FAC P/PM III certified and LEED AP certified. Jason is a Fellow of the Partnership for Public Service. He is a board member for both the Facade Tectonics Institute (FTI) and the AIA Building Performance Knowledge Community (BPKC).

As a technical leader, Stéphane leverages our Building Science team’s expertise in Enclosure Design, Façade Engineering, Energy Modeling and Envelope Component Modeling to assist our clients design, build and maintain enclosure systems to deliver high performance buildings.  Stéphane’s blend of experience in building science, engineering, and architecture guides his well-balanced approach to building envelope design, blending scientific analysis with an understanding of the aesthetics. He is particularly adept at providing innovative design concepts and construction alternatives that provide value by improving durability and increasing energy efficiency.  His work experience covers a wide range of building types across North America with a mix of new construction, as well as envelope rehabilitation and historic restoration projects.

Guanzhou Ji is a board member of the AIA - Building Performance Knowledge Community.  He works at the Illumination and Imaging Laboratory at Carnegie Mellon University - Robotics Institute, where he focuses on indoor photometry, computational photography, and physics-based rendering. He serves as a technical committee member for the Illuminating Engineering Society (IES) and the International Commission on Illumination (CIE).