Lutz Engelland

//Creative solutions. //Stable software. //Robust systems.

I develop software with C#/.NET, Python and modern web technologies. This includes services, web APIs, analysis pipelines and web UIs that make data flows, results and relationships visible. The focus is on interfaces, data models and structured outputs: from JSON contracts to system and device integrations and applications for industrial and technical processes.

For APIs, I handle request/response, error cases, logging/tracing and versioning, and ensure that interfaces are coherently embedded in the overall architecture and interact reliably with other components. When required, data is persisted reliably (database/storage).

When dealing with different formats, I apply parsing and mapping logic to derive a shared data model. Two examples are the OCR‑webservice (receipt classification and analysis with JSON output for business systems) and the AI demo (product digitization: multi-image analysis with JSON output for downstream processes), each with a UI layer on top, implemented in React/Next.js.

The GoPro Control Manager extends this approach to the device level: multi-camera control via COHN/Open GoPro API, status and session handling, and a controlled download pipeline for recorded media.

I’m generous when it comes to making things visible quickly (demo/showcase), but meticulous about details such as error messages, edge cases and contracts, because that saves time later.

I work in close collaboration: short paths, fast feedback and an iterative approach.

I’m open to new projects and contacts – especially when we jointly turn requirements into something concrete: processes, software or products.