- Oct 2007 - present - Profesor of Geophysics (Investigador Titular A), Centro de Geociencias, Campus UNAM, Juriquilla, Queretaro, Mexico;
- Nov 2006 - present - Visiting Associate, Seismological Laboratory, Caltech, Pasadena, California, USA;
- Nov 2006 - Oct 2007 - Postoctoral Scholar, Centro de Geociencias, Campus UNAM, Juriquilla, Queretaro, Mexico;
- Nov 2004 - Nov 2006- Postoctoral Scholar, Seismological Laboratory, Caltech, Pasadena, California, USA;
- 14 Feb - 24 Feb 2005 -GPS campaign, Chiapas, Mexico; (a study for: Polochic - Montagua fault system and the contact between the North America and Caribbean Plates; continuation);
- 28 Jan-10 Feb 2004 - GPS campaign, Chiapas, Mexico; (a study for: Polochic - Montagua fault system and the contact between the North America and Caribbean Plates; continuation) ;
- 03-2 semester (Feb 2003) - Assistant Professor, Geodynamics no. 60281, UNAM, Mexico;
- 7-21 February 2003- GPS campaign, Chiapas, Mexico; (a study for: Polochic - Montagua fault system and the contact between the North America and Caribbean Plates; continuation);
- 11-25 March 2002 - oceanographic campaign on the Justo Sierra university oceanographic boat: "PMAG01-Geophysical (Magnetic and Bathymetric Survey) Study for the Submarine Mountains in the Mexican Gulf";
- August 2001: GPS campaign in Southern Mexico. (a study for: Polochic - Montagua fault system and the contact between the North America and Caribbean Plates);
- March - June 2000-ERASMUS-SOCRATES scholarship, Salzburg University, Austria. Landslide hazard assessment using statistical methods (univariate, multivariate analysis, etc.) within a GIS software package;
- September, 1999-January, 2000 - Assistant Professor, Geotechnics, University of Civil Engineering of Bucharest, Romania;
- 1999 September. GEONET project, University of Civil Engineering of Bucharest, Tempus department;
- 1996- 1997, Co-worker TEMPUS Department, Technical University of Civil Engineering, Bucharest, Romania; Applicability of G.I.S. for: Archaeological Studies, Town-Planning, Vulnerability of Ground-Water, Probability of Landslides Hazard, Palaeokarst Studies;
- 1996 - 1997, Scientific Researcher Assistant, Institute of Geodynamics, Bucharest, Romania;