Sara Bergman is a backend engineer at Microsoft, specializing in optimizing hardware utilization across hundreds of cloud software teams. Her work focuses on reducing the need and waste in core computation, and increase utilization. She is an advocate for green software practices at Microsoft and externally. Sara co-authored "Building Green Software," a pivotal book published by O'Reilly that outlines the necessary actions the tech industry must take to address the energy transition and develop green software. Her efforts in promoting green software practices earned her recognition as a finalist in the "Developer of the Year" category at the Nordic Women in Tech Awards 2023.