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. The platforms team is seeking a senior software engineer to mature the infrastructure supporting one of Waymo's driving simulation technologies. This simulation system runs in a configuration as similar as possible to the real vehicle, on the same compute hardware as the vehicle. Incorporating the vehicle's compute system enables high-fidelity simulations that can find performance and reliability issues, and can accurately simulate fault responses and system mode transitions.