Christian is Professor of Public and Administrative Law at LUISS University, where he teaches courses on public law, policy and governance of innovation and climate change, as well as courses on climate neutral smart cities and sustainable investments. He acts as Luiss principal investigator for several EU-funded R&I projects and national grants on the creation of energy communities and emerging technologies hubs, Planetary Health-based urban regeneration processes. Christian has served as lead expert in several URBACT and UIA projects and is a member of the Urban Partnership on Innovative and Responsible Procurement under the Urban Agenda for the EU program. He served on the steering committee of the Italian Agency for Digitalization-AGID, coordinates the City Science Office of the City of Reggio Emilia and represents it within the EU City Science Initiative.

At THE NEW INSTITUTE, Christian is involved in the Africapitalism: Shared Entrepreneurship for Economic Development program in the Academic Year 2024/25.