Iñaki Alday received a Master of Architecture degree from the Polytechnic University of Catalonia in 1992. Together with Margarita Jover, he founded Aldayjover Architecture and Landscape in 1996 in Barcelona.
He has taught at the Polytechnic University of Catalonia, the University of Navarra and the University of Virginia. At the University of Virginia, he was the Elwood R. Quesada Professor of Architecture from 2011 to 2018, and Chair of the Department of Architecture from 2011 to 2016. Since 2016, he has been the co-director and founder (with Pankja Vir Gupta) of the Yamuna River Project, a long-term, interdisciplinary research program whose objective is to revitalize the ecology of the Yamuna River in the Delhi area.