Mariano Sebastian de Beer

Corporate Officer/Principal chez Telefonica Negocios

Profil

Mariano Sebastian de Beer currently works at Telefonica Negocios, as Executive Vice President from 2008.
Mr. de Beer also formerly worked at RBS Participações SA, as Chief Executive Officer, Vivo SA, as Chairman-Corporate Unit, Telefonica Brasil SA, as General Director-Fixed Telecommunications, Telefónica Latinoamérica SA, as SME Director, VEON Ltd., as Director in 2020, Ribbon Communications, Inc., as Independent Director from 2020 to 2023, Telefónica SA, as Chief Commercial Digital Officer from 2017 to 2019, Microsoft Informática Ltda., as President-Latam New Markets from 2015 to 2016, McKinsey & Co., Inc. do Brasil Consultoria Ltda., as Consultant in 1998, and Est Text Cia Suiza Industrial SA, as Marketing Manager.
Mr. de Beer received his Masters Business Admin degree from Georgetown University and undergraduate degree from Universidad Argentina de la Empresa.

Postes actifs de Mariano Sebastian de Beer

Sociétés	Poste	Début
Telefonica Negocios	Corporate Officer/Principal	19/11/2010

Anciens postes connus de Mariano Sebastian de Beer

Sociétés	Poste	Fin
RIBBON COMMUNICATIONS INC.	Directeur/Membre du Conseil	03/08/2023
VEON LTD.	Directeur/Membre du Conseil	21/12/2020
TELEFÓNICA, S.A.	Corporate Officer/Principal	27/11/2019
Microsoft Informática Ltda.	Corporate Officer/Principal	01/01/2016
McKinsey & Co., Inc. do Brasil Consultoria Ltda.	Corporate Officer/Principal	01/10/1998