Bachelor of Information Science (1985), graduated in (technical) EDP Auditing from the Free University of Amsterdam (1992).
He joined Moret Ernst & Young in 1988 after having worked at the internal EDP Audit department of the Dutch Department of Defence, and at one of the subsidiaries of Stork. Senior manager since 1993.
Experienced in computer centre audits and audits on logical access control. Specialized in access control audits in IBM mainframe environments (DOS/VSE and VM operating system) and audits on data (base) management. Co-program leader of the international Ernst & Young data base workshop.