Marianne Winslett has been a professor with the Department of Computer Science, University of Illinois at Urbana–Champaign since 1987 (assistant, associate, full, adjunct, research, and emerita). Since 2020, she has also been a venture partner at R3i Ventures, which is based in Singapore. She served as the director of the Advanced Digital Sciences Center, a research outpost of the University of Illinois, from 2009 to 2013. Her research interests include information management, high-performance computing, and security. She received a Ph.D. degree in computer science from Stanford University in 1987 and an A.B. in math from Harvard in 1980.