Cathleen Berger currently works with Mozilla where she is leading the organisation's global engagement. In this position she is responsible for analysing global developments on digital issues, strategising engagement across different teams, identifying partnerships and ensuring Mozilla’s ongoing presence in international key fora.

Previously, she worked within the international cyber policy coordination staff at the German Foreign Office, where she was in charge of devising strategies for internet governance, promoting human rights and freedom online, and drafting policy concepts for capacity building and digital development. Before joining the Foreign Office, she worked as a research assistant with the German Institute for International and Security Affairs, examining practices of data exchange in the EU, and as a visiting lecturer at the Friedrich Schiller University Jena.