Tomas Dupla del Moral has a law degree from the Universidad Complutense de Madrid (1970) and earned a MSc (1983) and a PhD (1985) in Sociology at the University of Wisconsin, Madison.
He worked as a barrister in Madrid between 1970 and 1980.
In 1984-86, he taught Criminology and Introduction to Sociology at the University of Wisconsin, which he joined with a Fulbright scholarship.
In 1986-88, he worked as a sociologist for the Andalusia regional government (Junta de Andalucía), the Madrid Institute for Development (IMADE) and the private office (gabinete) of the President of the Madrid regional government.
In 1989, he joined the European Commission. He has been desk officer for Palestine and Lebanon (1989-1992), head of the sector "Occupied Territories of the West Bank and Gaza Strip" (1992-1993), the first European Commission Representative to the Occupied Territories and head of the European Commission mission in Jerusalem and Gaza (1993-96), head of the Mashrak and Israel Unit (1996-2001) and the Latin America Horizontal Affairs Unit (2001-2004), Director for Latin America (2004-2007), Acting Deputy Director-General for Asia and Latin America (2007), Director for North Africa and the Middle East (2007-2011), and Director for the Americas in the newly established European External Action Service of the European Union until his retirement in February 2013.
Between 2012 and 2015, he was a member of the Advisory Board of the Madrid law firm Chavarri y Muñoz. He is currently a member of the Board of Trustees of the Barcelona-based Global Citizenship Education Fund.