Smart Cashier System

.NET Core / Message Queuing / DevExpress Blazor

About Project

A high-performance Point of Sale (POS) solution engineered for high-volume retail environments. The system facilitates rapid transaction processing while maintaining real-time data integrity.

Built on the .NET ecosystem, this system utilizes Message Queuing (MQ) to handle asynchronous data synchronization between local registers and centralized ERP systems. This ensures that even during network instability, sales data is queued and processed without loss. The system is fully compliant with tax regulations, featuring direct hardware-level integration with official Tax Registry devices.

Confidentiality Note: Full source code is restricted for security reasons.

Retail Capabilities

Market-Ready POS

Optimized for rapid barcode scanning and high-concurrency retail sales.

ERP Synchronization

Seamlessly syncs inventory, pricing, and sales data with core ERP modules via MQ.

Fiscal Compliance

Hardware integration for Tax Registry reporting and fiscal receipt printing.

Core Infrastructure

.NET / C#

Core Processing

Message Queuing

Async Data Flow

DevExpress Blazor

Admin Interface

System Screenshots

POS Interface
Sales Terminal
Inventory Sync
Data Sync
Reports
Fiscal Logs
Admin Panel
Admin Panel

All diagrams, Folder structure, Code example in this blog were created by me using Lucid, Canva and IDE. If you'd like to contribute, request more diagrams or text, or suggest improvements, feel free to contact me.

© 2026 Ashraf Jafarli. All rights reserved.