With a degree in English and German philology and English literary science  Denis has a background in communications and market research. He has worked on several E-learning projects. For example, from 2011 to 2012 he worked as a student research assistant for the linguistic E-learning platform “Progr@mm kontrastiv” at the Institute for the German Language (IDS) in Mannheim.

Since 2016, Denis has been working for Wikimedia Deutschland as part of their communications team. Here, among other things, he has been involved in scripting and producing video-tutorials for Wikimedia Deutschland’s campaign to attract new volunteers for Wikipedia. Explaining how the free encyclopedia works and that everybody can participate is a perfect case of how simple explanations can be used in video formats.