Management Team

Management Team

Management Team

Chairman and CEO Guillermo Fernández Vidal
Managing Director Fernando González Sánchez
Corporate Gral. Director Carlos Mariñas Lage
Chief Corporate Legal Officer Jorge de Casso Pérez
Dir. Gral Regional for Spain and Mexico José Luis Gómez Fernández
Chief Financial Officer Manuel Merino Lanza
Chief Resources Officer Jose María Maldonado Carrasco
Dir. Gral Regional for Argentina Fernando Vizcaíno Garrido
Dir. Gral Regional for Brazil Diego de Cárdenas
Dir. Gral Regional for Chile Manuel Román Caroca
Internal Audit Director José Ignacio Domínguez Hernández


Mr. Fernández Vidal studied Industrial Engineering and owns a Computer Science Degree. Since 2006, Mr. Fernández Vidal has been Advisor of Telefonica, Counselor of Telefónica O2 Czech Republic, counselor of Telesp in Brazil, Telefonica Spain, and Telefonica Moviles Spain, member of the Advisory Board of Accenture, of NOKIA Spain and also Advisor of Telefonica R & D. Previously, Mr. Fernández Vidal has been a member of the Steering Committee of Amper, Telefonica in Peru, Telefónica in Chile, TPI, Terra, Telefonica Moviles, Via Digital, Unisource and Portugal Telecom. Additionally, Mr. Fernández Vidal has held various management positions within the Telefónica Group, among others, the Managing Director of Business Development, of Affiliate Companies and Contents, General Business Director, Managing Commercial Director and General Manager of Telefónica in Spain. He has also been Chairman of Telefonica Systems, CEO of Telefónica Data and assistant to the Chief Executive Officer. Prior, Mr. Fernández Vidal also worked at NCR and Entel.

Fernando González Sánchez[READ MORE]

Bachelor in Business Administration by Universidad de Granada and post graduate degrees in IE Business School, ESADE and Universidad Pontificia de Salamanca (UPS).
Fernando has more than 24 years of experience in leading national and international corporates on infrastructure services, transport, tourism and oil & gas sectors where he held different roles such as Chief Financial Officer and Managing Director. In 2011, he joined Ezentis where he currently serves as Chief Executive Officer.

Carlos Mariñas Lage[READ MORE]

Another of the forward-looking professionals who transformed Telefónica into a global corporation, Mr Mariñas Lage dedicated its career to positioning the telecom provider as a premier vehicle for the delivery of IT services. Large part of Mariñas career has been linked to Telefónica, where he held positions of responsibility as Executive President of Terra Networks Associates (2005-2007), CEO of Telefónica International Wholesale Services and member of the steering committee of Telefónica Latam (2004-2005) and CEO of Telefónica Data Spain and member of the steering committee of Telefónica of Spain (1999-2003).
Mariñas, who studied Computer Science at the Polytechnic University of Madrid and holds a diploma in Business Management and Marketing from the Instituto de Empresa, was responsible for Siemens Business Services, counselor CEO of Siemens Corporate Networks from 1996 to 1999 and member of the steering committee Siemens Spain.
He arrived at the German company from Entel, where between 1980 and 1986 he was successively responsible for the technical direction and marketing Telefónica’s subsidiary.

Jorge de Casso Pérez[READ MORE]

Chief Corporate Legal Officer since February 2006.
Jorge de Casso Pérez holds a degree in Law from the Autonomous University of Madrid and Master in Judicial Practice and Practice of Law by the Carlos III University of Madrid.
He has over 18 years of professional experience Prior to joining Ezentis Group he has developed his professional work in the Procedural Law Department of the firm Ramón & Cajal Abogados. Previously, from September of 2000 until March 2003, he belonged to the law firm of D. Mariano Muñoz Bouzo. Practicing member of the Madrid Bar Association since 2000. Law degree from the Autonomous University of Madrid. Masters in Legal Practice and Practice of Law by the Carlos III University of Madrid.

José Luis Gómez Fernández[READ MORE]

José Luis Gómez Fernández is a Senior Telecommunications Engineer with more than 26 years of experience positioning solutions and services in the sector, leading teams both locally and internationally and achieving remarkable results in the units he has led as responsible in Alcatel-Lucent and Nokia, all global business and commercial strategy of Telefónica has in Europe and Latin America. Previously, he was General Manager of Dominion Ingeniería y Tecnología in the period 2001-2004 and Commercial Director of Philips Telecomunicaciones. In 2017 he joined Grupo Ezentis S.A as General Director of Spain.

Manuel Merino[READ MORE]

Mr. Manuel Merino has a long experience in the financial area for multinational companies of the Construction, Real Estate, Industrial, Energy and Services sectors such as: Grupo San José (2005-2016). In this company he initially held the positions of CFO in the Energy sector, Industrial Division, then Chief Financial Officer (CFO) of the Group San Jose for the past 3 years.

Degree in Business Studies and Business Administration from the University of Cantabria. Mr. Manuel Merino also has an Executive MBA from Instituto de Empresa, Spain.

José María Maldonado Carrasco [READ MORE]

Director General of Resources since March of 2004.
Boasting over 25 years worth of experience in human resources strategic management, Mr. Maldonado joined the Ezentis management team after honing his skills at a series of renowned companies: EEIG ERTMS Users Group (European Economic Interest Group European Rail Traffic Management System),where he held the position of Financial Manager and representing RENFE to the European Commission in Brussels, then Director of Human Resources and Labor Relations at the ENCE Business Group. In April 2008 he incorporated in the Ezentis Group where he developed the post of HR Director and Resources until his appointment as Director General of Group’s Resources.
Industries Engineer from the School of Forestry Engineering of the Polytechnic University of Madrid and Computer Systems of Pontificia de Salamanca. He owns several MA such as in Human resources by the Center for Financial Studies Madrid (CEF) and an MBA in Company ESADE Business School.


23 years experience in the world of multinational communication, with specialization in customers, markets and Latin American consumers, with direct responsibility for operations in the following countries: Mexico, Spain, Chile, Argentina, Uruguay.

Boasting a strong training in the management of companies, Mr. Vizcaíno was for 11 years CEO of Euro RSC Argentina and Chile. He was then appointed for a period of 4 years CEO of Havas WW South Iberoamerica (Spain, Argentina, Chile); also he led the transformation of traditional business operations to the new paradigm of digital companies for all LATAM.
It must be highlighted his achievements leading businesses: he maintained all operations under his responsibility in the first 3 rankings of industry and brought double digit growth for 9 consecutive years. In 2009 and 2011 he was named worldwide "Man of The Year" in the Havas network.

Mr Fernando Vizcaíno studied Information Sciences, International Marketing at ESIC and Postgraduate Course at IMD (Lausanne / Switzerland)

Diégo de Cárdenas[READ MORE]

Diego de Cárdenas has extensive international experience in business management, integrations, implementation of transversal projects of transformation and management of equipment. For 14 years, he has held various positions at Telefónica, including CFO at Telefónica Empresas Brasil and Director of Management Control, Investments and Planning at the company in Argentina and Brazil, as well as global positions at the corporate headquarters in Spain.

Manuel Arturo Román Caroca[READ MORE]

Manuel Román is Civil Electrical Engineer, specialized in Electronics and Telecommunications, with postgraduate studies of Marketing and Business Management. He was founder and managing partner in several companies. Manuel Roman owns 28 years of experience in the area of Telecommunications in Chile, among which it must be highlighted his knowledge in Management Teams and participation in Directories of Corporations, Direction of Trade and Sell teams in Mass consumer, Small and Medium-sized enterprises, Large Companies and Corporations.

Manuel Roman started his career as a Product Manager in the company SISTECO SA. Later he was appointed by Telefónica Chile, where he held several positions: Chief Projects Division of Communications; Chief Commercial, Finance, Education and Services Area, Head of Coordination and Monitoring Department, Chief Marketing Department, Head of Business Development, Chief Commercial Controller; Head of Presales Department, and Business Center Manager. Entrepreneur, founder and General Director of COMSERVICE and TECNOREDES.

In 2005 he was appointed General Manager of the Company CONSORTIUM RDTC SA, position held until 2013. Currently he is General Director of the Pacific Region for EZENTIS Group, SA, headquartered in Santiago de Chile.

Jose Ignacio Dominguez[READ MORE]

Jose Ignacio Dominguez is an Executive with more than 30 years of professional experience in several fields of private listed Multinational companies, as Fomento de Construcciones y Contratas, ( FCC Group) , with wide international experience, specialized in positions of CFO, General Manager of Internal Audit, Chief Risk Officer, Compliance officer, and Corporate Governance with large experience in advisory to Board of Directors.
His professional experience is supplemented as Vice-President Economic of Giant Cement Holding in EEUU, Chief Financial Officer of Multinational Sulzer Group, in Spain and Switzerland, Audit Manager in Price Waterhouse Auditors in Madrid and London, Deputy Chief Financial Officer in Spantax Airlines, Partner consultant of advisory business in Adea Consultores and currently as Corporate Director of Internal Audit in Ezentis Group.
He´s a Bachelor of Business & Economics by Complutense University of Madrid and San Pablo CEU University, Master Business Program by IESE Business School- Navarra University. He´s Graduated as Official Auditor of Accounts of Spain (ROAC) and hold the Certificate International Risk Management Assurance (CRMA) by the US Institute of Internal Auditors (IIA)

Jose Ignacio is an active member of several Corporate Governance Committees, such as Internal Audit Institute Spain , Risk Management Group for IBEX 35, and Normalization AENOR. He speaks fluent English apart from Spanish.