María J. Calderón is a condensed-matter theorist with interests on complex oxides, the high-temperature iron-based superconductors, and Si nanostructures for quantum computing. After completing her Ph.D. in Madrid in 2001, she spent three years at the University of Cambridge as a Research Fellow of Churchill College, and two years at the Condensed Matter Theory Center at the University of Maryland. She returned to Madrid in 2007 with a Ramón y Cajal contract. Since 2011, she has been a Tenured Scientist at the Instituto de Ciencia de Materiales de Madrid, a materials research institute which is part of the Spanish National Research Council (CSIC).