Authors and Contributors

Mario has been leading product and technology since 1999, first as CTO and then as CPO and CPTO, and went all-in on product management more than fifteen years ago, with a soft spot for B2B. He can’t stop thinking about how to solve real customer problems with state-of-the-art technology.

Along the way he built Quentic’s product and UX function from the ground up and grew it from DACH to pan-European. Today he’s CPTO at Hygraph, and he holds a Ph.D. in Computer Science.

Beyond the craft of product, Mario also writes about which B2B software survives AI, and why some moats hold while others collapse. That’s the Durability Stack, at mariolenz.de.

A Head of Product who graduated from Marketing and Project Management, led a number of exciting projects, have worked in Asia, Europe, and North America, got an MBA too. A complete self-starter, humble and ambitious.