Staff Software Engineer, Webviz

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.