Waymo is an autonomous driving technology company with the mission to be the world's most trusted driver. Since its start as the Google Self-Driving Car Project in 2009, Waymo has focused on building the Waymo Driver-The World's Most Experienced Driver-to improve access to mobility while saving thousands of lives now lost to traffic crashes. The Waymo Driver powers Waymo's fully autonomous ride-hail service and can also be applied to a range of vehicle platforms and product use cases. The Waymo Driver has provided over ten million rider-only trips, enabled by its experience autonomously driving over 100 million miles on public roads and tens of billions in simulation across 15+ U.S. states. Waymo's simulation infrastructure is a backbone of Waymo Driver development. It powers all the simulation, evaluation and foundation model training use cases across Waymo. As an overall performance and efficiency lead you will be responsible for setting the long term technical direction, aligning short-term efforts with long-term direction and be the trusted decider for technical decisions, with partner teams. You will report to our Director of Infrastructure and Reliability Engineering.