Jeffery Poss Architect, PLLC, has designed and completed award-winning proposals for  residences,  memorials,  pavilions, and  deployables. Commission and competition work has been published in numerous books, journals and magazines in print and online. As a result of this recognition, Poss was elected to the College of Fellows of the American Institute of Architects in 2010. He is the co-author of Space, Movement, and Light: The Architecture of Jack Sherman Baker, FAIA  (University of Illinois, 1997), and the author of Spaces of Serenity: Small Projects for Meditation and Contemplation (ORO Editions, 2015).

Poss received his Master of Architecture from the University of Illinois in 1980. The following year, his successful design competition resulted in Poss winning the Lloyd Warren Traveling Fellowship. In the years following he practiced with Skidmore Owings and Merrill,  Kevin Roche John Dinkeloo & Associates, and Tai Soo Kim Partners. In 1989 he returned to Urbana-Champaign to begin teaching and practicing architecture. Studio teaching focused on the development of concept, materials, and detail into architectural design, including design-build structures, furniture design, and the exploration of whole-to-part relationships in architecture, for which he received the AIA Education Honors Award. In 2014 he founded the detail + FABRICATION Program Area in the Illinois School of Architecture, serving as chair of d+F from 2014 through 2016. 

From 2017 until 2019 Poss served as the Interim Director of the Illinois School of Architecture.  In 2019 Poss was awarded the position of Professor Emeritus.   

The firm, Jeffery Poss Architect, PLLC, continues to develop project of varying scale that stay true to fundamental values outlined in the essay "Critical Ruralism."