Software development: web-service, SaaS, PHP, JS. (PWA, responsive, multi-access)
Software development: web-tool, Python, C#. (fact gathering crawler)
Software development: mobil-app, Node.js, JS, Rust (shareing, geo-find, assigne)
Software development: web-service, Java. (free slots booking)
Software development: ms-windows, C# (pay-roll, attendance)
3D-modeling: solar thermal collector
CAD: sub-terrain pool facility