Juan José Castellón is an Architect (ETSA Barcelona, 2003), Master in Emergent Technologies & Design (Architectural Association London, 2011), and a Doctor of Sciences from the Swiss Institute of Technology (ETH Zurich, 2018).

Castellón's research focuses on the implementation of innovative material processes and structural systems in architecture and on the integrative and ecological design of building infrastructures. Through his work at Rice University located in Houston (USA) and his collaborative practice, xmade, located in Basel (Switzerland) and Barcelona (Spain), he explores the materialization and sustainable design of contemporary structures and building envelopes.

His research output includes structural and material prototypes, installations, and peer-reviewed articles and publications, receiving international awards such as the “Crossroads Prize” by the Seoul Biennale of Architecture, the “Forge Award” (finalist) by the American Institute of Steel Construction, and “La Caixa Foundation Award”.

As co-founder and co-director of xmade Switzerland, he has been part of the design and development of projects by xmade in collaboration with renowned international practices such as Barozzi Veiga, Ted’A, Jose Maria Sanchez Garcia, or Alberto Campo Baeza. Some of these projects, including the Swiss Embassy Building in Seoul, the Cantonal Museum of Fine Arts in Lausanne, or the School in Orsonnens, or the Bauhaus Museum Dessau, have been broadly published and acknowledged with international awards such as the "Korean Architecture Excellence Award", the "Fritz-Höger-Award", the “FAD International Award”, and the “Museum of the Year Award” from the International Association of Art Critics (AICA).

As an independent architect, Castellón has collaborated with international firms such as FOA (London), Abalos & Herreros (Madrid), SHoP Architects (New York), and Herzog & de Meuron (Basel). Before joining Rice University, he also taught at the ETH Zurich and the Barcelona Institute of Architecture.