👋 I’m Steffen. I’m a Deployed Engineer at LangChain, helping customers ship reliable AI applications by turning prototypes into production systems.
Before LangChain, I spent years helping teams build and operate high-scale data systems, most recently as a Field Engineer at Materialize and before that as a Principal Streaming Architect at Amazon Web Services working with Apache Flink and Apache Kafka. My technical roots go back to a PhD on Complex Event Processing at the University of Munich, and I’ve shared what I’ve learned as a speaker at Flink Forward, Kafka Summit, and AWS re:Invent. I also enjoy creating practical technical workshops, blog posts, and documentation. To stay hands-on, I contribute to open source (including LangChain, Materialize, and Apache Flink) and explore topics like deep learning and query optimization. When I’m not tinkering with code, I’m trying to lure my daughters into tech with cute stickers I’m collecting along the way.