Javier Junquera is a tenured professor at the University of Cantabria in Spain. He obtained his Bachelor's degree in theoretical physics from the University of Oviedo in 1996 and his Ph.D. from the Autonomous University of Madrid in 2001. His main interests are in functional materials, particularly nanostructures made from complex oxides. He is also one of the developers of the SIESTA code, a program that can be used to compute the electronic structure of materials from first principles. In 2014 he was recognized as an Outstanding Referee by the American Physical Society.