Ausgewählte Arbeiten mit Fokus auf Backend-Zuverlässigkeit, Architektur-Governance und disziplinierter Engineering-Umsetzung.
A production-ready file service built with .NET 8 and Amazon S3 using presigned URLs, strict tenant isolation, and metadata persistence in PostgreSQL.
.NET 8 · ASP.NET Core · Entity Framework Core · PostgreSQL · Amazon S3 · Keycloak
A full-stack fleet management application for tracking vehicles, trips, and fuel expenses with tax-ready reporting and zero-cost infrastructure deployment.
.NET 8 · ASP.NET Core · Entity Framework Core · Next.js 15 · TypeScript · Supabase · SQLite · PostgreSQL
A local-first tax mobile app in active beta (v1.0.1), with EN/DE support, core workflows, and PDF/ZIP export.
Expo (React Native) · TypeScript · SQLite (on-device) · i18n (EN/DE) · PDF/ZIP Export · Optional OneDrive export integration