I design and build maintainable software solutions with a focus on system integration, real-time communication and reliable operation.
My background combines professional software engineering with practical experience in the fire service. This gives me a particular interest in software for operational environments, public services, associations and emergency-response organisations.
- Software architecture and system integration
- .NET and Java backend development
- Cross-platform applications with Avalonia
- Real-time communication with SSE, SignalR and MQTT
- CI/CD, containerisation and automated quality checks
- Modernisation of existing applications and processes
Feuerwehr-KPP is my primary open-source project and serves as a showcase for modern software architecture, cross-platform development and DevSecOps practices.
The goal is to build a modular platform that supports fire departments in managing equipment, users and operational processes across desktop, mobile and web applications.
- Cross-platform clients with Avalonia
- ASP.NET Core (.NET 10) backend
- PostgreSQL and Redis
- Docker-based development and deployment
- GitHub Actions CI/CD
- SonarQube integration
- Dependabot and automated release workflows
- Authentication and role-based access control
- Designed for real-world operational environments
View repository Feuerwehr-KPP
Cross-platform application used to support the organisation and execution of rowing regattas.
Avalonia application for Windows, Linux, Android and iOS MVVM architecture and dependency injection Authentication and configurable API integration Server-Sent Events for live updates Automated tests and GitHub Actions Release packaging for multiple platforms
View repository Lübecker Regattaverein
I am particularly interested in:
- modular monoliths and service-oriented architectures
- integration patterns and event-driven systems
- architecture decision records
- observability and operational readiness
- secure software supply chains
- pragmatic modernisation of legacy systems
I am interested in contributing to software projects for fire services, disaster response, public organisations and non-profit associations.
Contact
- 💼 LinkedIn: Stefan Petersen
- 🐙 GitHub: @Sanifant
- 📧 Email: (sanifant@proton.me)
Building software that has to work when reliability matters most.