Applications are invited for postdoc positions in the ‘LEaDing Fellows Postdocs Programme’ (third call). This is a Horizon2020 Marie Skłodowska-Curie COFUND programme and will provide 90 researchers from all over the world who recently obtained a PhD,with the opportunity to gain two years of work experience in the challenging, internationally acclaimed and multidisciplinary environment offered by Leiden University Medical Center, Leiden University, Erasmus University Rotterdam, Erasmus Medical Center and Delft University of Technology.