He has worked for national editorial offices in print media, such as the Frankfurter Allgemeine Zeitung (FAZ), on radio and on television. His regular editorial team has been with Rundfunk Berlin-Brandenburg (RBB) since 2012.
His journalistic specialty is internal security issues such as extremism, crime, and violence in football. He is interested in the causes of conflict as well as the motives of violent activists, speaking with extremists in prison to uncover their motives. Sundermeyer is the author of several books; the most recent, “Gauland – The revenge of the old man” follows the transition of Alexander Gauland, AfD party chairman, from conservativist to extremist.
The biography is based on many of Sundermeyer’s conservations with Gauland and other relevant personalities. For his work, he was awarded the “Long Breath” research award in 2016 and 2018 and the German-Polish journalism award in 2014. Sundermeyer lives in Berlin.