He has expertise in radiation and nuclear safety. He is a plenary Member of the Academy of Sciences of Buenos Aires, the Argentine Academy of Environmental Sciences, the Argentine Academy of the Seas, and the International Nuclear Energy Academy. Currently, he is Senior Advisor of the Argentine Nuclear Regulatory Authority, a representative at the United Nations Scientific Committee on the Effects of Atomic Radiation, member of the Commission of Safety Standards (CSS) of the International Atomic Energy Agency and the Committee on Radiological Protection and Public Health of the Nuclear Energy Agency (OECD-NEA). He has been Vice-chair of the International Commission on Radiological Protection, Vice-President of the International Radiation Protection Association and Director for the IAEA Radiation, Transport and Waste Safety Division for over two decades.