Is a Professor at Faculdade de Direito da Universidade de Lisboa (University of Lisbon, Faculty of Law), Jurisconsult and Arbitrator.

Costa Gonçalves has published a vast body of work on General Theory of Civil Law, Law of Obligations, Company and Capital Markets Law and Arbitration Law.
Besides being a researcher at Centro de Investigação de Direito Privado (CIDP), Costa Gonçalves is also a member of Friends of the Hamburg Max Planck Institute for Comparative and International Private Law, of Associação Luso-Alemã de Juristas (Deutsch-Lusitanische Juristenvereinigung), Associação Portuguesa de Arbitragem (APA), Comitê Brasileiro de Arbitragem (CBar), Associação Lusófona de Arbitragem e Mediação (ALAM), Clube de Arbitralistas Lusófonos (CAL), Asociación Latinoamericana de Arbitraje (ALARB) and of ICC Portugal.

Furthermore, Costa Gonçalves is listed as an arbitrator in several arbitral chambers.