AgileEngine is seeking a Senior Software Engineer to design a multi-tier sync architecture for a high-volume QSR platform. You will implement conflict-resolution strategies, event sourcing, CQRS, and saga patterns across order, kitchen, payment, and receipt flows using React Native and Node.js.

You will also model the PostgreSQL cloud data layer and ensure offline-first data consistency across local, edge, and cloud stores, leveraging real-time pub/sub or WebSockets for live state updates.