Mariam is a Senior Water Supply and Sanitation Specialist for the Global Water Practice of the World Bank. She is based on Benin CO, and her current focus is water supply and urban fecal sludge management. Before that, Mariam spent ten years as a researcher at 2iE (International institute for Water and Environmental Engineering) in Burkina Faso, where she managed academic research projects in resource-oriented agro-sanitation in sub-Saharan Africa, Japan, and Indonesia. She earned a Ph.D. in environmental science from the Swiss Federal Institute of Technology (EPFL) by working on wastewater irrigation impact on soil quality, and an MSc in hydrology, hydrogeology, and geochemistry from the University of Paris-Saclay, France.