I design and build backend, web, and mobile software end-to-end — from architecture decisions to production delivery. Specialized in C#, ASP.NET Core, and .NET MAUI. Based in Dresden, Germany; available remote and across the EU.

🌐 v83.de · 🏢 code-ix.de · 💼 LinkedIn

• Backend & APIs — Scalable REST APIs with ASP.NET Core and EF Core. Clean architecture, DI, TDD.
• Cross-platform mobile — iOS, Android, and Windows apps with .NET MAUI (and Xamarin before that). 20+ apps shipped.
• Desktop & web — WPF where a rich desktop client is the right call; Blazor for web UIs that share the .NET stack.
• Delivery — Git, GitHub Actions, Azure DevOps, Docker, Azure. From first commit to production.

I take ownership of the whole path: architecture, implementation, code review, CI/CD, and the unglamorous bits that get software actually delivered.

Core

Data

Delivery

Practice — Clean Architecture · MVVM / MVC · TDD · Design Patterns · Agile / Scrum

A self-hosted Git server for Windows, written in C# / ASP.NET. Maintained fork of Bonobo Git Server, modernized and actively developed under my Code-iX organization. A representative example of how I approach legacy modernization and long-term OSS maintenance.

Tech: C#, ASP.NET, Entity Framework, IIS

Native apps for Windows Phone and Windows 10 Mobile, plus cross-platform apps for iOS, Android, and Windows with Xamarin and .NET MAUI — for industry clients and own products. Most are under NDA; happy to walk through case studies on request.

I take on freelance contracts for backend, mobile, and full-stack .NET projects — short-term consulting, longer build engagements, or embedded as a senior developer in your team.

📍 Dresden, Germany · 🌍 German (native), English (fluent), Spanish (conversational)

_{P.S. The Jack-The-Adventureman repo is my 2003 high-school Turbo Pascal project. It stays up for honesty's sake — everyone starts somewhere. 🙂}