General Taxation law and International Taxation.
State Tax Inspector (on voluntary leave).
State Inspector of Customs and Special Taxes (on voluntary leave).
State Inspector and Auditor (on voluntary leave).
General Director of Taxes in the Ministry of Finance and Public Administration (from January 13th, 2012 to December 2nd, 2016).
Chief Inspector, Head of the Tax Control Unit of the Central Delegation for Large Contributors in the AEAT.
Coordinating Inspector In the National Fraud Investigation Office.
Deputy General Director in the Tax Planning and Methodology Department.
Coordinator of the International Tax Planning area of the Tax Planning department in the AEAT.
Coordinator of the Central Information Office for Public Companies.
State Lottery and Betting Administration Councils (and Chairman of the Audit Committee) and of Paradores Nacionales.
Cooperatives Tax Regime Advisory Board (President).
Taxpayers Advocacy Council.
Author of several publications on taxation, specially in international taxation.
Member of the Advisory Council Committee and supervision of the following publications: IEF Fiscal Chronicle, CEF Auditing and Taxation, Aranzadi’s International Taxation and AEDAF Taxation Management Magazine.