Joshua began his career helping companies such as Hewlett Packard, Nike, Yum! Brands, and Lockheed Martin develop sustainability initiatives, which led to work on green building certifications and construction management. He spent 8 years as a professor at the University of Washington Construction Management department, where he developed a curriculum that is still taught today, addressing sustainability in the construction industry for undergraduate and graduate courses.  

Joshua spends time backcountry skiing and fly fishing when not on a building site.