> Markdown version of [/@martin-karrer](https://www.wearedevelopers.com/@martin-karrer). 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). --- # Martin Karrer AWS solutions architect focused on scaling applications and AI agent orchestration. ## About Martin Karrer helps teams design scalable systems at Amazon Web Services. He started out building software for advertising technology before moving to AWS to tackle large-scale application architecture. Much of his recent work centers on how AI interacts with traditional systems. He breaks down why conventional REST APIs fail at agent orchestration and explores how to build intent-based interfaces using the Model Context Protocol. When he isn't rethinking API paradigms, Martin writes Elixir and dives into database internals. ## Past Sessions ### World Congress 2026 Europe · July 8, 2026 Berlin, Germany - [REST In Peace: Why LLMs Can't CRUD](https://www.wearedevelopers.com/videos/100272-rest-in-peace-why-llms-can-t-crud) · 30 min · 🎥 Watch recording ## Videos - [REST In Peace: Why LLMs Can't CRUD](https://www.wearedevelopers.com/videos/100272-rest-in-peace-why-llms-can-t-crud) · Martin Sakowski, Martin Karrer