> Markdown version of [/@dennis-bappert](https://www.wearedevelopers.com/@dennis-bappert). 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). --- # Dennis Bappert Solutions Architect focused on distributed machine learning systems and PyTorch. ## About Dennis Bappert architects machine learning infrastructure on AWS. He focuses on the math behind neural networks and the reality of deploying them on cloud servers, bridging the gap between data science and distributed systems. He is known for breaking down the mechanics of machine learning frameworks. Rather than relying on high-level abstractions, he writes PyTorch training loops from scratch—scaling custom transformer models from a single local machine to robust distributed pipelines. ## Past Sessions ### World Congress 2024 · July 17, 2024 Berlin, Germany - [PyTorch train loop from scratch - from local to distributed](https://www.wearedevelopers.com/events/world-congress-2024/sessions/445-pytorch-train-loop) · 30 min