· Assistant Professor of Surgery – Division of General Surgery, School of Medical Sciences of Santa Casa of São Paulo, São Paulo, Brazil.
· PhD – Department of Surgery, University of São Paulo Medical School, São Paulo, Brazil.
· Director – Center of Abdominal Wall Surgery. Santa Casa of São Paulo Hospital, Division of General Surgery, School of Medical Sciences of Santa Casa of São Paulo, São Paulo, Brazil.
· Director – Hernia Center, German Hospital Oswaldo Cruz, Sao Paulo, Brazil.
· Foreign Visiting Professor of the National Universidad Del Northeast – University of Medicine, Corrientes, Argentina.
· Foreign Visiting Professor of the National Universidad of La Plata -University of Medicine, La Plata, Argentina.
· President-Elected of the Americas Hernia Society (AHS) (2012-2013).
· President of the Latin American Association of Laparoscopic Surgery (ALACE) (1996-1998).
· Member of the International Advisory Board-The Journal of Hernias Abdominal and Wall Surgery.
· Member of the International Advisory Committee – Journal of the Society of Laparoendoscopic Surgeons.
· Lectures in Medical Meetings and Postgraduate Courses – Conferences, Round Table Session and Live Surgery: Brazil, Argentina, Paraguay, Uruguay, Peru, Chile, Mexico, Guatemala, Panama, Colombia, Costa Rica, Venezuela, USA, Canada, France, Italy, Spain, Luxemburg, Japan, Germany and Singapure.