As Group Tax Manager, your main tasks and responsibilities will be : Support international subsidiaries and branches in operational tax issues with a focus on international aspects , Analyze of various income tax issues from an international tax perspective , Support in the optimization of the group structure and implementation of tax planning and capital preservation measures , Support during international tax audits and national tax audits , Monitor the Group's international transfer prices , Further development of transfer pricing concepts, transfer pricing guideline and coordination of transfer pricing documentation Support in determining deferred and effective taxes according to IFRS , Tax reporting, controlling and calculation for monthly and annual financial statements, as well as validation of budget / forecast , Conception and implementation of internal training courses.