SALSA POS
Restaurant Point of Sale platform for Mobile, Tablet, Swan Terminal and Kiosk devices.
- Company
- Whyphy Infotech
- Role
- Senior Mobile Application Engineer
- Domains
- POS · Real-time · Multi-device
Overview
A production point-of-sale platform running across four device classes in the same restaurant, at the same time, on the same order. Terminals must agree with each other instantly on the floor and with the cloud eventually.
The problem
A restaurant floor runs several terminals and handhelds concurrently. Orders, floor state and shift data must stay consistent across devices even when the venue's internet connection drops mid-service.
What I built
A local sync engine over Datagram Sockets keeps devices on the venue LAN in agreement in real time, while a WebSocket channel handles cloud synchronization. The application is a multi-module Clean Architecture codebase covered by JUnit and Maestro automated tests.
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