Sander is a quantitative sociologist and sociodemographer. Since 2021 he is a Research Associate at the Leverhulme Centre for Demographic Science. Before he worked as a researcher at ENSAE/CREST and INED and finished his PhD at Universitat Pompeu Fabra. Sander is interested in how social stratification and demographic processes interact as well as intergenerational mobility. His current research focuses in particular on the labour-market consequences of motherhood as well as on how demographic processes affect wealth inequality.