Between 2002 and 2007 he worked as an Associate Professor in the Department of Physical Chemistry, National Autonomous University of Mexico. Dr Pineiro is co-founder of Software 4 Science Development S.L. and developer of its main product, the AFFINImeter platform for the thermodynamic and kinetic analysis of intermolecular interactions from experimental data. He is also co-founder and scientific advisor of MDUSe Innovative Solutions S.L. His research interest includes the development of models and software for the analysis of experimental data from multiple techniques and the study of intermolecular interactions by several experimental methods as well as by molecular dynamics simulations.