Global Head of Tax and Corporate Vice President at Siemens since 2009, based in Munich, responsible for the global Siemens team of 690 tax and customs experts.
Christian is the Vice-President of Global IFA (since 2025). He is the co-chairman of the BIAC Tax Committee (since 2025), chairman of the tax Commission of the German Federation of Industries (BDI) (since 2021), chairman of the supervisory board of WTS AG (since 2009) and member of the advisory council of the Belt and Road Administration Cooperation Mechanism (BRITACOM – since 2020).