Badr is an AI Research Engineer at Duolingo. Currently, he designs and scales bandits and other causal models for monetization Duolingo. Previously, Badr worked on personalized bandits for notifications as well as designing & implimenting novel models for learner knowledge and memory.

Before starting at Duolingo, Badr was faculty at the Unviersity of Pittsburgh and previously Fordham University in NYC. As a professor of neurophysics, Badr researches at the intersection of neuroscience, statistical mechanics, information theory, and machine learning. He is committed to using these technical skills to build products that empower learners in new ways.