I am a postdoctoral fellow at the Norwegian University of Science and Technology (NTNU) since 2009. Previously, I worked as a researcher fellow at the University of Maryland and Fraunhofer Center for Experimental Software Engineering-Maryland. I received my PhD in experimental software engineering from the University of Campinas - UNICAMP in Brazil. My research interests are empirical software engineering, research methods and theory development, systematic reviews, software maintenance and open source software.