Stefan Schmitt

15 years writing software

0b11110xf years writing software

Software Engineer

I’m a software engineer building Apple apps and on-device AI systems on Apple Silicon.

I work on personal projects such as Narration Room and write about the parts that are hard to learn from documentation: model delivery, local inference, Apple Intelligence, MLX, and production app architecture.

I also wrote On-Device AI: ML Foundations for iOS Developers, a practical guide to deploying machine-learning models on iOS with Core ML and Apple Silicon.

You can reach me by email.

What I work on

Apple Apps
∙ iOS, iPad, and Mac app development
∙ Product engineering for Apple platforms
Apple Intelligence & MLX
∙ On-device AI systems for Apple platforms
∙ Apple Intelligence, Foundation Models, and MLX
Product Infrastructure
∙ APIs, data models, and backend systems
∙ Reliability and architecture for shipped products
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