Charles Cui is a CS Ph.D. candidate at Northwestern University, who has a broad interest in using tools from human-computer interaction and data science for social impact. He co-organizes the Mechanism Design for Social Good (MD4SG) research initiative. Previously, he served as a fellow at the Data Science for Social Good (DSSG) program at Carnegie Mellon University to build a data-informed call routing system for the 988 Suicide & Crisis Lifeline. Prior to Northwestern, he received his B.A. in mathematics and computer science from Oberlin College.