Microsoft MVP since 2013 · 3 Books · 100+ Conference Talks
Good AI results are a craft, not a matter of luck.
I teach that craft to your team.
Whether it's GitHub Copilot, Claude Code or OpenAI Codex: in one to two days I show your development team how to turn paid licenses into measurable productivity. And if you're considering a switch from Copilot to Claude or Codex, we compare the tools live on your own code. Tailored to your stack, including a decision-maker workshop for management and team leads.
Reviews
We are very happy to recommend our Text Control MVP André Krämer as an external trainer and consultant, who can always help our customers efficiently and in a target-oriented manner thanks to his many years of project experience.
Mr. Krämer took a lot of time for a workshop with us. He came very well prepared and the meeting was extremely productive. His expertise in the area of cross-platform development is impressive.
AI Training for Developer Teams
Four sentences I hear in almost every software company. If one of them sounds familiar, we should talk.
"We pay for Copilot. Nothing happened."
Licenses for everyone, a quick demo, then business as usual. Without instructions, skills and practiced workflows, the professional tool remains a better autocomplete.
"Should we switch away from Copilot?"
Copilot was the obvious choice in the Microsoft ecosystem: well integrated into Visual Studio and VS Code. Now pricing models are changing, and Claude Code and OpenAI Codex are strong alternatives. In the training we compare the tools on your own code. Afterwards you can justify the decision.
"Everyone here uses something different."
ChatGPT here, Copilot there, half the team nothing at all. Without a shared standard, productivity gains are down to luck. And company code ends up in tools nobody vetted.
"My developers are working for the AI."
Hallucinated APIs, untested code, endless reviews. The problem is rarely the tool. It's the missing workflow around it.
More Trainings: .NET MAUI and TX Text Control
Develop cross-platform apps with .NET MAUI for Android, iOS, macOS, and Windows
With .NET MAUI, your team serves all four platforms from a single C# codebase instead of maintaining Android, iOS, macOS, and Windows separately. In this training, I get your .NET developers to the point where they set up MAUI apps cleanly and steer clear of the typical pitfalls, from architecture to device access. Hands-on live coding throughout, on a real example project, not slides.
Document generation with TX Text Control
Invoices, quotes, contracts: as long as documents are copied together by hand from old files, it costs time and produces errors. In this training, I get your developers to the point where they generate documents automatically from their own software, from the Word template to the finished PDF via the Mail Merge API. Hands-on throughout, on working code.
Need reinforcements for your project rather than training?
That's what my team at Quality Bytes GmbH does. We modernize grown .NET applications, build cross-platform apps with .NET MAUI, and automate document processes with TX Text Control.
- Software modernization: Your grown .NET application should live on instead of being rewritten at great expense? We modernize step by step, without endangering day-to-day operations.
- App development with .NET MAUI: One codebase for Android, iOS, Windows and macOS. Apps for field service, warehouse, production and care that also work offline.
- Document automation: Generate quotes, contracts and reports automatically, straight from your application. As TX Text Control specialists we know the pitfalls.
Short paths, dedicated contacts, and code your team can maintain on its own afterwards.
To project consulting30+ Video Courses on LinkedIn Learning
In my video courses you learn .NET MAUI, Azure DevOps, Git, and Entity Framework Core through concrete examples, whenever and wherever you want. More than 30 courses have been published on LinkedIn Learning, watched by over 40,000 learners so far.
.NET MAUI basic course
Would you like to develop apps that run natively on Android and iOS mobile devices as well as on macOS and Windows desktops? Learn .NET MAUI with this basic course.
Learn more
Azure DevOps Basic Course
Azure DevOps is a cloud-based solution from Microsoft for planning, developing, and distributing software. Learn all the important basics in this course.
Learn moreGit Integration in Visual Studio
Git is the most popular version control system. Learn how to integrate Git into Visual Studio and master all the relevant commands.
Learn moreVisual Studio 2019 basic course
Discover the powerful tools of Visual Studio 2019 and optimize your software development with this IDE.
Learn moreMy books: from your first app to the store release
Three books on cross-platform development, most recently the 2nd edition of "Cross-Plattform-Apps mit .NET MAUI entwickeln" (2024). No rehashing of the docs, but one continuous hands-on project: from the first XAML layout through barcode scanning and local data storage all the way to app store deployment.
The code samples come from real projects. My trainings work with exactly this material.
The next edition is already planned. Subscribe to the newsletter below if you don't want to miss it.
Develop cross-platform apps with .NET MAUI (2nd edition)
Build cross-platform apps for Android, iOS, macOS, and Windows with C#, along a real example app. The German-language .NET MAUI reference (2nd edition) by Microsoft MVP André Krämer.
Details
Develop cross-platform apps with .NET MAUI - 2022
Comprehensive introduction to cross-platform development with .NET MAUI (1st edition, 2022).
Details
Developing cross-platform apps with Xamarin.Forms
Everything for development with Xamarin.Forms: from the code base to the device API. Predecessor technology to .NET MAUI.
DetailsConference Talks: BASTA!, DWX and more
More than 100 talks at developer conferences. Here you'll find slides and code samples to read up on. You'll also see where you can catch me live next: in 2026 among others at DWX and BASTA!.
.NET MAUI 10: The Rebel Spirit Is Back
BASTA! Autumn 2026, Mainz
"Why Are We Actually Building This?" – From Backlog Chaos to a Shared Picture with User Story Mapping
BASTA! Autumn 2026, Mainz (Workshop)
.NET MAUI 10: Finally Grown Up – Hybrid, AI and the Return of the .NET Cross-Platform Dream
DWX Developer Week 2026, Mannheim
User Story Mapping in Practice: From Chaos to a Clear Backlog
BASTA 2026
From the Blog
This is where I write about what I actually run into in day-to-day development. Currently that's mostly AI-assisted development and .NET MAUI. No press releases, just solutions to problems I had myself.
Lebensdauer von SQLite-Datenbankverbindungen in .NET MAUI und Xamarin.Forms: Kurz- oder Langlebig?
Kürzlich erhielt ich eine Frage von einem Leser meines Buches Cross-Plattform-Apps entwickeln mit Xamarin.Forms, der auf Seite 336 des Buches auf …
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Verstärkung bei der Quality Bytes GmbH in Sinzig gesucht (Softwareentwickler .NET, Softwareentwickler Angular, Xamarin, ASP.NET Core)
Das könnte dein neuer Schreibtisch sein Im Sommer 2018 habe ich gemeinsam mit einem Partner die Quality Bytes GmbH in Sinzig am Rhein, gelegen …
Learn moreKlickbare Labels Mit Xamarin.Forms
Während eines Prototypworkshops fragte mich ein Kunde kürzlich, warum das Xamarin.Forms Label Steuerelement kein Click oder Tap Ereignis …
Learn moreFehler: Xamarin.Forms legt in Visual Studio 2017 Update 5 leere Projektmappe an
Kürzlich stieß ich auf einen sehr unschönen Fehler in Visual Studio 2017 Update 5. Beim Testen der neuen Xamarin.Forms Projektvorlage, die nun auch …
Learn moreWas tun, wenn die Xamarin App während der iOS Store Prüfung wegen einer Exception abgelehnt wird?
Vermutlich jeder, der bereits eine App geschrieben hat, kennt dieses Gefühl der Ungeduld wenn man die letzten Features der App entwickelt. Man möchte …
Learn moreTell me where your team stands. I'll tell you what's possible.
André Krämer
Microsoft MVP since 2013 · AI & .NET Trainer · Book Author
CEO of Quality Bytes GmbH
Request a free assessment
Briefly describe your situation: your team, your stack, and what you want to achieve. Within 48 hours you'll get my honest assessment of what would move the needle most for you, whether that's a training, a talk, or something else. Free and without obligation. And if I'm not the right person, I'll tell you openly and recommend an alternative.