Catarina Marques Vieira holds a Law degree from Lusíada University and post-graduate degrees in Administrative Procedural Law, Political and International Sciences, and Public Procurement Law.

In 2015 she was appointed Commissioner of Cascais European Youth Capital 2018. Previously she was Cascais City Councillor for Youth, Employment and Legal Affairs and Head of Office of the Mayor of Cascais.

She is the Secretary of the General Meetings of the municipal companies Cascais Ambiente, Cascais Próxima and Cascais Envolvente.