Ateena Rahvuslik ja Kapodístria Ülikool, külalisprofessor 01.01.2023-
Barcelona Autonoomne Ülikool, Institute of Environmental Science and Technology, Külalisprofessor (0,20) 01.09.2018–
ETH Zürich, Külalisteadur (0,05) 01.09.2018–30.08.2019
Harvard University, Berkman Klein Center for Internet and Society (0,10) 01.09.2017–...
Commons Transition Group, Teadur (0,10) 01.01.2014–...
P2P Lab, Research Hub (0,50) 01.01.2013–...
Barcelona Autonoomne Ülikool, Institute of Environmental Science and Technology, külalisdotsent (0,10) 01.04.2016–01.04.2018
Vrije Universiteit Amsterdam, Department of Social and Cultural Anthropology, külalisteadur (0,10) 01.04.2016–31.12.2017
Greek Government, Office of the Deputy Prime Minister for Technology Governance, (0,10) 01.02.2016–01.07.2016
Bitmind.co, Building a Toolkit for Open Value Networks (0,20) 01.09.2015–30.08.2018
Greek Government, Office of the Prime Minister for ICT and E-governance (0,30) 01.01.2009–31.12.2010
Foundation for the Peer-to-Peer Alternatives (P2P Foundation), Research Coordinator (0,30) 01.09.2007–01.02.2017