Gennie is the Activism Director at the Electronic Frontier Foundation, where she leads a team of advocates, researchers, and policy analysts working to defend and expand digital rights online. Her research and advocacy primarily focus on consumer privacy and security, with an emphasis on third-party tracking, platform policy, and secure messaging, as well as content moderation and open access.

Prior to joining EFF, Gennie was a Henry Luce Scholar in Laos and Thailand, and earned a Master of Library and Information Science from the University of Washington Information School while doing research in the School of Computer Science and Engineering's Security & Privacy Research Lab. While at the UW, she also co-founded a successful initiative for a university open access policy. Outside of her EFF work, Gennie volunteers at the San Francisco Public Library and serves on the program committees of several computer science research venues.