Staff Software Engineer, Webviz

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. Webviz is Waymo's central platform and product for visual debugging, telemetry, and triage. Teams across Waymo (including Perception, Behavior, and Simulation) use the Webviz C++ and TypeScript framework to integrate their domain-specific visualizations into a single tool. The Webviz backend processes and streams 4D (3D + time) time-series logs, real-time telemetry, and simulation data. In this L6 role, you will own the C++ server infrastructure and concurrent data streaming pipelines. You will design C++ abstractions to load and process fleet logs, optimize Borg, RPC performance, and build APIs that let engineers and automated evaluation pipelines analyze driving data. You will: • Build and maintain concurrent C++ backend services (Borg/Boq RPC servers) that stream time-series and sensor data to the Webviz client. • Scale C++ data delivery abstractions for offboard storage (CNS, Spanner) and WebRTC streams. • Optimize latency and throughput using log-sampling, payload post-processing (deduplication, timeline merging), and async C++ services. • Build backend APIs for automated callers (triage bots, evaluation executors) to render driving scenes. • Plan technical roadmaps and own the scaling, security, and performance isolation of the offboard data infrastructure. • Mentor engineers, review system designs, and establish systems-level C++ best practices. You have: • Bachelor's degree in Computer Science, a related technical field, or equivalent practical experience. • 5 years of software development experience in C++. • Experience with systems programming, including multi-threading, concurrency, memory efficiency, and profiling. • Experience building high-throughput distributed systems, RPC services, or time-series data pipelines. • Experience leading technical designs and mentoring engineers on complex, multi-quarter projects. We prefer: • Experience with Google-internal infrastructure (Borg, Boq, Stubby/gRPC, CNS, and Spanner). • Experience developing backend systems for video/image rendering, WebRTC, or developer tools. • Familiarity with autonomous vehicle data formats (RoadGraph, sensor logs, and trajectory prediction outputs). • Familiarity with web client architectures (Angular, TypeScript) to design client-server APIs. • Experience with TDD, performance profiling, and integration testing. The expected base salary range for this full-time position across US locations is listed below. Actual starting pay will be based on job-related factors, in

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