Matthias is associate researcher at the University of Geneva in the Hub of Environmental Governance and Territorial Development and is also project manager in participation in the department of the territory of Geneva Sate. ​

Matthias has a PhD in Geography and Political Sciences from the University of Geneva and the Autonomous University of Barcelona.

Matthias works in different fields to explore new ways of making the city (urbanism, e-citizenship, urban ecology, community action). Matthias is founder of La Fabrique de l'Espace a multidisciplinary group based in Geneva (Switzerland) which works to produce a public and radical city.

He has coordinated participatory urban planning projects and urban events in connection with public space in France, Switzerland and Spain.