After serving as Head of Production for daily late-night shows and
primetime galas at the production company BRAINPOOL TV in the 1990s,
Sonja built the international sales department for the company.
IIn 2001, she became Head of Acquisition and Distribution,
representing the company at international markets and in trade bodies.
She has also provided programme acquisition services for VIVA Media Group
and for MTV Networks Germany.
In 2006, Sonja was member of the Jury at the Golden Rose Festival
in Lucerne (Pilot Category) and judged the Comedy and Non-scripted
Entertainment Semi Finals of the International Emmy Awards.
In the following years, she was trainer of the Entertainment Master
Class (Modul Comedy) and a jury member for the German Comedy Awards.