Macarena is part of the Competition and Regulation area of FerradaNehme. She is a lawyer from the Universidad de Chile and has complemented her training with three courses at the Postgraduate School of the same university, on "Collusion"; "Abuse of dominant position and vertical restraints" and "Legal aspects of cybersecurity".

Before joining FN, Macarena worked as an associate in the Corporate Law area at Cariola Díez Pérez-Cotapos law firm and was also a prosecutor in the Litigation Division of the National Economic Prosecutor's Office.

Macarena has worked as an assistant professor of Civil Law and Administrative Law at the Universidad de Chile. She was also a collaborator in the student organisation Encuentro Público, dedicated to promoting participation and learning in the field of public law.