Roy is an Assistant Professor at the Information Systems Technology and Design Pillar, Singapore University of Technology and Design. He is a faculty of the transformative Design and Artificial Intelligence programme. His research lies in the intersection of data mining, machine learning, social computing, and natural language processing. He is leading the Social AI Studio, a research group that focuses on designing next-generation social artificial intelligence systems. He also heads the Online Safety & Cyber Abuse Research (OSCAR) network, an initiative to design solutions to combat a wide-spectrum of online harms. He has published in top-tier venues in data mining and computation linguistics domains. He serves on the program committees of multiple top data mining and natural language processing conferences. He is currently on the editorial board for the Social Network Analysis and Mining journal.