Marcell finished high school at the Lauder Jewish Community school in Budapest, and spent his youth at Szarvas Camp. From 2002 he permanently took part in the work of Haver Informal Jewish Educational Foundation as a volunteer, an informal educator, and also as a general advisor. At Haver Marcell has been organizing and conducting dialogue programs for Hungarian public school students.
In 2007 he graduated as a political scientist at the ELTE University - Faculty of Law. During his university years he specialized in international political relations and the history of the middle-east in the twentieth century. In 2007-2008 Marcell was a fellow at Paideia - The European Institute for Jewish Studies in Sweden. At Paideia – besides Jewish textual studies – he was a member of the “professional track”, and organized an inter-faith dialogue project for Jewish, Muslim and Christian students in Stockholm.
From 2008 Marcell took part in the establishment of the Israeli Cultural Institute in Budapest, he was responsible for resource development. From January the 1st, 2011 Marcell served also as the deputy director of the Institute until he joined the team of Centropa in June 2011. Centropa is a non-profit, Jewish historical and educational institute dedicated to preserving 20th century Jewish family stories and photos from Central and Eastern Europe and the Balkans, and disseminating these stories and photos through films, books, exhibitions, and a variety of educational programs.
Marcell served as the director of Centropa Hungary, the Centropa Jewish Network, and he was also the deputy director of Centropa international. Marcell left Centropa in 2020, and joined the team of the JCC Budapest – Bálint Ház, where he currently is the director for resource development, and from September the 1st, Marcell is taking over as the next director of the institute.
Besides JCC Budapest, Marcell currently serves as the president of the Board of the Haver Informal Jewish Educational Foundation, he is also member of the Board of the UCCU Informal Roma Educational Foundation, the Charity Taxi Foundation, and recently he also joined as a member of the Advisory Board of the Dutch Jewish Humanitarian Fund.