Career
Vieira has a law degree from Universidade Lusídas Lisboa, Portugal and holds a Master"s degree in Sustainable International Development from Brandeis University, where he served as President of the Graduate Students Association. He was awarded a certificate of Emerging Leaders Program in Executive Education from Harvard Kennedy School of Government and an Archbishop Desmond Tutu Leadership Fellowship in South Africa. In 2004, Vieira began his career in public service in Guinea-Bissau by serving as the Head of Multilateral Agreements in the Ministry of Trade.
In this capacity he represented Guinea-Bissau in the multilateral trade negotiations of the World Trade Organization.
He took courses in Geneva offered to students from Least Developed Countries. In May 2014 he contributed to party"s landslide victory.
In July he was sworn in as, the youngest member (Kodé) of the government.