-Surgeon in Chief, Pediatric Solid Tumors Program. The American British Cowdray Cancer Center, Mexico (2017 - current).
-Global Clinical Scholars Research Training Program (GCSRT). Harvard Medical School (2021-2022).
-Surgeon Scientist, Department of Surgical Oncology. National Institute of Pediatrics, Mexico City (2017-2021).
-Director, National Childhood Cancer Program at the Federal Ministry of Health, Mexico (2013-2017).
-Chief, Department of Pediatric Surgical Oncology, National Institute of Pediatrics, Mexico (2006-2013).
-Head Professor, Post-Doctoral Fellowship Training Program,
National University (2006-2013).
-Consultant Pediatric Surgeon, Kilimanjaro Christian Medical Center
Tanzania, East Africa (2003-2004).
-Fellow of the American College of Surgeons (FACS)
International Pediatric Surgical Oncology (IPSO)
Latin American Pediatric Surgical Oncology Collaborative Group (LAPSO)
Steering Committee, Mexico in Alliance with St. Jude (MAS)
-Fellowship in Pediatric Surgical Oncology at Memorial Sloan Kettering Cancer Center (Cornell / NYU: 2001-2002).
-Fellowship in Pediatric Surgery at Children´s Hospital Los Angeles (USC: 1999-2001)
