Tomás is originally from Portugal but has lived all across Europe. He holds a Bachelor's degree in Philosophy and Politics from the University of York and a Master's degree in Political Science from the University of Amsterdam, specializing in Political Theory and writing a thesis on migration. Having been involved in party politics on a local, national and European level, he taught at the University of Amsterdam as a Junior Lecturer, before moving to Brussels to work as an Accredited Parliamentary Assistant to a Portuguese MEP, where he focused on External Affairs and Enlargement Policy.