Coimbra District
Born in Bissau, Guinea-Bissau, Eder moved to Portugal as a child, and started playing football with Associação Desportiva e Cultural da Adémia in the Coimbra District at the age of 11. He made his senior debut with Oliveira do Hospital and G.D. Tourizense, the latter in the third division and the farm team of Académica de Coimbra.