Hi, I’m Mariusz Gromada, the author of mXparser.

Alongside building reliable open-source software, I have spent the past 20+ years architecting large-scale B2C personalization systems. I’ve captured this dual perspective in my recent book:

“Customer First, Value Next: The Executive Playbook for AI-Driven Omnichannel Personalization and Customer-Centric Growth.”

If you’re an engineer, analyst, tech leader, or business leader interested in building scalable AI systems that genuinely understand customers – rather than just pushing products – this is for you.

“Technology isn’t just an automation tool. It’s a megaphone for empathy.”