> Markdown version of [/@mateusz-gren](https://www.wearedevelopers.com/@mateusz-gren). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mateusz Gren Leads software and AI at Atos, focusing on practical architecture and real user outcomes. ## About Mateusz Gren directs software and AI development at Atos, managing teams of several hundred engineers. He focuses on practical architecture and ensuring products actually deliver business value. Instead of getting distracted by new technology, he advocates for putting the user at the direct center of the development lifecycle. His talks dive into what works and what breaks when building AI solutions, challenging teams to stop shipping features nobody uses. Outside of enterprise systems, Mateusz builds his own minimal-code applications to track his sports performance and personal finances. ## Past Sessions ### World Congress 2026 Europe · July 8, 2026 Berlin, Germany - [User 1st! Technology 2nd! Stop building AI nobody uses - start delivering real business outcomes](https://www.wearedevelopers.com/videos/100337-user-1st-technology-2nd-stop-building-ai-nobody-uses-start-delivering-real-business-outcomes) · 30 min · 🎥 Watch recording ## Videos - [User 1st! Technology 2nd! Stop building AI nobody uses - start delivering real business outcomes](https://www.wearedevelopers.com/videos/100337-user-1st-technology-2nd-stop-building-ai-nobody-uses-start-delivering-real-business-outcomes) · Mateusz Gren, Peter Hock ## Links - [LinkedIn](https://www.linkedin.com/in/mateusz-gren/)