Marius is a research assistant at the Geschwister-Scholl-Institut for Political Science, Ludwig-Maximilians-University Munich (LMU). His research interests include the international arms trade, electoral politics in Sub-Saharan Africa and the mobilization for collective action in communal and intra-state conflicts.

Marius is working on a project in cooperation with SIPRI and PRIO on historical Arms Trade. He is visiting PRIO for four weeks in late Summer 2016 to work with Nic Marsh on researching Arms Trade and Disarmament Efforts after the first World War.