Kristen de Graaf is a programme manager for ParentApp for Teens in Tanzania, and in the Department of Social Policy and Intervention at the University of Oxford, where she manages a large and complex portfolio of research grants and studies. She provides strategic management support to ParentApp and the HEY BABY project and assists with operational leadership at Oxford. Kristen has a background in nursing and a wealth of experience in the delivery of complex projects, advocacy, policy engagement, stakeholder management and technical knowledge on HIV, sexual and reproductive health and global health.