Michal Olejniczak accepts senior Marketing role at ACI Worldwide

Published on March 11, 2026

ACI Worldwide has named Michal Olejniczak Director of Regional Marketing, Americas. He comes from Fiserv where he was a Senior Director, Demand Generation Marketing.

Olejniczak wrote on LinkedIn: “Anyone who knows me knows that two wheels, momentum, and pushing uphill are kind of my thing. Huge thank you to everyone who offered support, advice, encouragement, and kind words throughout this journey (you know who you are). I’m incredibly grateful - and energized - to get started and build what’s next with this team.”

Before this, Olejniczak worked at CoverMyMeds, McKesson, Honeywell, Allscripts and Liaison Technologies.

Olejniczak has a B.A. in International Affairs from Kennesaw State University and an MBA in International Business from Georgia State University – J. Mack Robinson College of Business.

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