Key job responsibilities - Design and build real-time distributed systems and algorithms that determine how CloudFront routes traffic across hundreds of edge locations - Own data pipelines end-to-end: real-time load measurement, latency collection, and traffic placement signals from design through production operations - Author design documents, lead technical reviews, and drive architectural decisions for your area - Investigate routing anomalies by tracing traffic decisions through multiple system layers to root cause - Collaborate with networking, capacity planning, and DNS teams to improve customer outcomes - Drive operational excellence: monitoring, alerting, automation, and runbooks - Participate in on-call rotations, responding to incidents with sound judgment - Mentor engineers through code reviews, design guidance, and hands-on problem solving A day in the life You design and build the systems that decide where CloudFront routes traffic. Problems arrive as "traffic isn't behaving right," not as specs - Are curious about networking, CDN architecture, and how the internet actually works - Think about scale: real-time decisions across hundreds of locations, dozens of signals - Own your systems end-to-end.