Istvan Ollari is an Audit Manager specializing in Indirect Tax at IBM ISSC Kft., where they coordinate audit readiness processes for IBM affiliates across Europe, Africa, and Asia. Previously, Istvan held various managerial roles at Cemex SSC, ExxonMobil, and Esso Hungária, focusing onTransaction services, business operations, and financial accountability. Istvan earned a Master's degree in Economics from Budapest Corvinus University and is currently pursuing a Chartered Accountant designation at Oktav.
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