Karol Zielinski
Karol Zielinski is an experienced leader with over 15 years in the FinTech and technology industries. Throughout his career, he has held various executive roles - including CEO, investor, and advisor - across multiple international ventures. He specializes in digital transformation, financial technologies, and strategy development, helping businesses bridge the gap between innovation and execution.
As the founder and CEO of z3x, Karol leads a multidisciplinary team focused on driving business transformation through technology. The group operates across sectors such as FinTech, AI, e-commerce, supporting clients from concept to market launch. His work combines strategic consulting, and hands-on implementation of advanced digital solutions.
Latest Articles by Karol Zielinski
FinTech
Oct. 29, 2025, 2:19 p.m.
101
FinTech
Oct. 21, 2025, 12:33 p.m.
Agentic Commerce Protocol (ACP). What it is and how it works: a complete guide
286
E-commerce
Oct. 21, 2025, 12:31 p.m.
Instant Checkout in ChatGPT - what is it and how does it work? A compendium of knowledge
247
Platform vs Platform
Oct. 21, 2025, 10:49 a.m.
Stripe vs Checkout.com - Unmasking The Superior Payment Gateway Solution
879