Welcome to Corebaseit — a space dedicated to practical, real-world knowledge about Point-of-Sale (POS) architecture, EMV, cryptography, security, and professional software engineering.

My name is Vincent Bevia, Senior Staff Engineer and POS Architect. I lead the development of SmartPOS and SoftPOS systems, with a focus on EMV compliance, cryptography (DUKPT, HSMs), and scalable payment architectures.

This blog complements my ongoing book,
Point-of-Sale Systems Architecture — A Practical Guide to Secure, Certifiable POS Systems,
and serves as a place to publish insights, diagrams, and lessons learned that don’t always make it into the chapters.

Here you’ll find:

• POS fundamentals and system design
• EMV and Cryptography explained clearly
• SoftPOS (Tap-to-Phone) architecture and MPoC security
• Practical engineering patterns for payments
• Real-world diagrams, flows, and test strategies

If you’re building payment technology — or want to understand how secure transactions really work — you’re in the right place.