Zach is a decision scientist with research interests in simulation modelling and global health.  He has worked as a programmer/analyst at the Center for Health Decision Science at the Harvard T.H. Chan School of Public Health since 2011, and entered the Decision Sciences concentration of the Ph.D. Program in Health Policy at Harvard University in 2015. He received his undergraduate degree in Global Health Management from Seattle Pacific University and his Masters of Public Health from l’Ecole des Hautes Etudes en Santé Publique (EHESP) in Paris, with a concentration in Epidemiology. 

Originally from Kenya, Zach has worked with various community-based NGOs in Tanzania, Malawi, and Rwanda, creating health information systems and management tools.  At Harvard he has developed microsimulation models focused on childhood obesity, gastric cancer, and maternal mortality.