Cella Sum is a research assistant with Data & Society’s Trustworthy Infrastructures program, where she examines community responses to the rapid expansion of data centers and AI infrastructure in Pennsylvania. She is also a PhD candidate at Carnegie Mellon’s Human-Computer Interaction Institute, where she focuses on technology, power, and resistance in labor contexts. Working at the intersection of HCI and STS, she uses qualitative and ethnographic methods to investigate how communities experience, navigate, and contest data-driven practices, surveillance systems, and expanding AI infrastructure. Using participatory and speculative design methods, she collaborates with affected communities to co-create more just alternatives. Cella holds a master’s degree in human-computer interaction and design from UC Irvine and a BS in computer science from Shippensburg University. She is a member of Collective Action in Tech and a former tech worker-organizer with Big Cartel Workers Union.