From 2010 to 2015 he held the position of Chair of the Autoantibody Standardization Committee affiliated to the International Union of Immunology Societies (IUIS). Since 2014 he is the coordinator of the International Consensus on ANA Patterns (ICAP). Since 2011, he is member of the European Autoantibody Standardizing Initiative (EASI). He is member of the Advisory Board Medicine II at the National Funding Agency CAPES. In 2017, he was nominated chairman of the IUIS Quality Assessment and Standardization Committee. He has experience in Medicine, focusing on Rheumatology and Autoimmunity, acting on the following subjects: auto-antibodies, autoimmunity, interface between immunodeficiency and autoimmunity, systemic lupus erythematosus, systemic sclerosis, capillaroscopy, gene expression and gene polymorphism.