Software Development Engineer II, On Road Execution

Own the backend that puts 10+ billion packages a year into customers' hands. On-Road Execution (ORE) builds the Tier-1 services that manage the real-time execution state of every Amazon delivery driver's itinerary — the critical link between route planning, station operations, and the Rabbit app.<br/><br/>We're looking for a backend engineer who wants hard distributed-systems problems at massive scale, with real ownership and end-to-end autonomy. In this role you'll:<br/><br/>- Design and operate Tier-1 services at up to 99.95% uptime, absorbing 2-3X traffic during peak<br/>- Help stand up a brand-new Tier-1 service from the ground up<br/>- Drive a live architecture migration and re-architect our enrichment platform to an event-driven model<br/>- Power Amazon's fastest delivery programs — same-day, ultra-fast, and 15-30 minute deliveries<br/>- Work in a GenAI-forward team where AI tooling is part of how every engineer builds<br/><br/>Key job responsibilities<br/>As a Backend SDE on ORE, you'll design, build, test, and operate mission-critical Tier-1 distributed services at scale, owning your work end to end — from design through launch and into production on-call.

You will:<br/><br/>- Develop FIPS (FlexItineraryProvider

Service), the aggregator between backend systems and the Rabbit app — gathering sequence (IM), assignment (PTRAS), and TR metadata (PTRS), enriching in parallel, and translating into Rabbit models.<br/>- Build on Itinerary Manager (IM), our materialized-view sy