Ahmed is a statistical epidemiologist and Senior Research Fellow at Bristol Medical School, University of Bristol. His research focuses on describing physical and mental health trajectories, including the role of early life factors and effects of trajectories on later outcomes. He currently works on pubertal growth analysis methods supported by an MRC New Investigator Research Grant. Ahmed also leads a multinational cohort collaboration within the A.R.T-HEALTHPARTNERSHIP that is investigating the effects of assisted reproductive technology on offspring health. Previously, he worked on the LongITools project (environmental exposures and health trajectories) and the LifeCycle project (helping to establish the EU Child Cohort Network). Ahmed earned his PhD in epidemiology from University College London, having previously completed an MPH at the University of Essex and an undergraduate degree in medical sciences at University College Cork.