Chris­t­ian has been Exec­u­tive Direc­tor of Wiki­me­dia Deutsch­land since June 2021. Pre­vi­ous­ly, he had been Deputy CEO and Finance and Oper­a­tions Direc­tor there since 2016. Pri­or to that, he helped estab­lish the non-prof­it research cen­ter CORRECTIV for two years as Exec­u­tive Direc­tor. From 2007 to 2014, he was Exec­u­tive Direc­tor of the anti-cor­rup­tion orga­ni­za­tion Trans­paren­cy Inter­na­tion­al Deutsch­land. He is one of the co-ini­tia­tors of the trans­paren­cy por­tal Frag­Den­Staat, which went online in 2011.

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