Between 2001-2005 she lead the Multifactrorial disease genetics research group at the Department of Molecular Medicine and Surgery at Karolinska Insitutet and studied genetics of type 1 diabetes, atopic dermatitis, bipolar disease and alcoholism. In 2006 she joined the Neuroimmunology Unit at the Department of Clinical Neuroscience and changed the focus of her research to genetic epidemiology of multiple sclerosis, having since 2014 led the Multiple Sclerosis genetic epidemiology research group. In 2007 she became Associate Professor in genetics. Between 2017 and 2023 she was coordinating the Horizon 2020 funded MultipleMS project. Currently coordinates the Horizon Europe funded WISDOM project.