Sergio Castellanos is an assistant professor at UT Austin's Fariborz Maseeh Department of Civil, Architectural, and Environmental Engineering Department, where he leads the RESET (Rapid, Equitable & Sustainable Energy Transitions) Lab, analyzing just decarbonization pathways in the US and emerging economies, data-driven sustainable transportation approaches, and equitable local energy transitions. With collaborators, his interdisciplinary projects have been awarded international prizes, won national competitions in México, and gathered media attention. He received the 2023 Cesar Chavez "Si Se Puede" Award' from an environmental justice organization in Austin, TX, in recognition of his leadership and transformative work to help better communities in Austin. Sergio holds an Engineering Ph.D. from MIT.