Sebastian Harnacker (he/his), holds university degrees in Slavonic Studies and Comparative Literature (University of Vienna). Prior to his academic engagements, he worked as a mechanical engineer and land surveyor. At the University of Vienna he worked as a tutor for Russian Language and Literary Research at the Department of Comparative Literature. He was a member of the Research Group Knowledge Engineering at the Faculty of Computer Science and a member of the Research Platform Urban Futures at the Department of Social Sciences.

Since 2023 he has worked as a project assistant for OPUSH (Open Urban Sustainability Hubs) at the TU Wien library. The project is establishing ways to enhance the roles and capacities of research libraries as open hubs for sustainable urban transformation. The aim is the transformation towards being an inclusive space for interested actors of civil society, especially empowering marginalised groups to contribute to the sustainable development of urban areas.