I was born in Vila-rodona (Catalonia) in 1977. I studied Computer Science at University Rovira Virgili where I received my BSc and at Universidad de Murcia where I received my MSc. I got my PhD in the Department of Physics, at Universitat de Barcelona under the supervision of Dr. Alex Arenas. During my PhD I also collaborated with Albert-Diaz Guilera, from the Group of Complex Systems in Barcelona. Currently I am a postdoctoral fellow in Luis Amaral’s Group, in the Department of Chemical and Biological Engineering of Northwestern University. My work is devoted to the understanding of the structure of complex system and its interplay with the dynamical processes that take place in the system. In particular, I am interested in three different problems related with the science of networks: (i) how to use the structure of a social network to measure the performance of its members, (ii) how to extract and visualize the relevant features of the intermediate scales of biological systems, and (iii) how to use the information of the Internet’s structure to create better solutions for internet security.