I am an associate Professor at Universidad Nacional de Colombia, in Medellín.  Previously, I was a visiting Professor at the ANTA group at Aalto University, an associate Professor at Universidad de los Andes and a  research Professor at the Math department at Universidad Konrad Lorenz . I was a postdoctoral researcher in the CSAG group at EPFL and in the number theory group at UBC.  My primary research fields are algebraic number theory and arithmetic geometry.