Chartered Accountant, Nederlands Instituut van Registeraccountants, Amsterdam. Former Independent Auditor, Dutch Ministry of Finance. 1985, Audit Supervisor, KPMG, Eindhoven. 1990-2002, various senior international finance and controlling positions, packaging industry, Schmalbach-Lubeca, Germany. 2003, joined RWE Group as Head of Group Controlling; 2004, concurrently, Member of the Executive Board, RWE Umwelt; 2005, Chief Executive Officer, RWE Trading, responsible for the merger of RWE Trading and RWE Gas Midstream into RWE Supply & Trading, becoming Chief Executive Officer in April 2008; 2009, took responsibility for the integration process of Essent; until December 2011, Chief Executive Officer; Sept. 2011, appointed Deputy Chairman of the Executive Board, RWE; July 2012 - October 2016, Chief Executive Officer, RWE; since April 2016, Chief Executive Officer, innogy.