He holds a ScD, University of Massachusetts Lowell, an MD, School of Medicine, Federal University of Rio de Janeiro, Brazil and an MPH, Johns Hopkins University School of Hygiene and Public Health. Dr. Siqueira was an assistant professor in the Department of Community Health and Sustainability at the University of Massachusetts Lowell between 2005 and 2011, where he researched the political economy of the migration of hazards between developed and developing countries, healthcare workers’ work environment policy issues, and environmental justice for Brazilian immigrants.