- Backend: C#/.NET, ASP.NET Core, Entity Framework; Python (FastAPI, Jobs/ETL/Automation)
- Architektur: Clean Architecture, SOLID, Design Patterns, Microservices, API-First
- Integration: REST, SOAP, BiPRO; Carrier-APIs; Messaging/Eventing (z.B. Azure Service Bus)
- Data & Analytics: SQL (T-SQL/PL/pgSQL), Python (Pandas/Polars), R
- Cloud & DevOps: Azure, Docker, CI/CD; IaC (Bicep/Terraform)
- Security & Ops: OAuth2/OIDC, Azure AD (Entra ID), Key Vault; Monitoring/Tracing (App Insights/OpenTelemetry)
- Datenbanken: SQL Server, PostgreSQL, Access; Firebird (Legacy)
- Versionierung: Git, GitHub
- Testing: Unit, Integration, API/E2E; TDD-Mindset