David Ortinau
Principal Program Manager at Microsoft
St. Louis, Missouri, United States
Summary
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RockstarDavid Ortinau is a Principal Program Manager at Microsoft with 15 years of experience focused on mobile developer tooling and the .NET ecosystem. Based in St. Louis, he regularly partners with engineering teams and developers to improve Xamarin, .NET MAUI, and Visual Studio experiences for iOS, Android, and desktop. A hands-on contributor to prominent open-source projects (dotnet/maui, Xamarin.Forms, Comet), he blends product leadership with code-level fixes—often tackling platform-specific UI and iOS quirks. He’s notable for moving mobile UI samples and apps (like WeatherTwentyOne) toward .NET MAUI, showing a practical knack for cross-platform UX and migration challenges. Colleagues rely on him to translate developer feedback into concrete SDK improvements that accelerate app development.
14 years of coding experience
javascript
Stackoverflow
271reputation
8kreached
6answers
2questions
Github Skills (24)
ios10
mobile-development10
xaml10
maui10
net10
xamarin10
user-interface10
ui-design10
net-maui10
uid10
xamarin-forms10
front-end-development10
android10
dotnet-core10
mobile10
Programming languages (8)
Github contributions (5)
dotnet/maui-samples
Mar 2021 - Jan 2023
Samples for .NET Multi-Platform App UI (.NET MAUI)
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:3 reviews, 56 commits, 31 PRs in 1 year 10 months
Contributions summary:David contributed to the development of .NET MAUI samples, demonstrating the implementation of UI elements and the addition of new functionality. They worked on features like a click counter and additional controls in a HelloMaui sample and implemented aspects of the WeatherTwentyOne app. Further contributions include adding samples for flyout, tab, and shell navigation as well as implementing a calculator sample.
app-platformmaccatalystmauimulti-platformios
davidortinau/WeatherTwentyOne
Apr 2021 - May 2022
Role in this project:Mobile Developer (Android/iOS)
Mobile Developer (Android/iOS)Contributions:89 commits, 13 PRs, 37 pushes in 1 year
Contributions summary:David primarily worked on developing the user interface and layout of the weather application, specifically focusing on the mobile experience. They were responsible for creating and integrating UI components such as a navigation bar, various widgets for displaying weather information, and implementing features like favorites and settings pages. Additionally, the user updated UI elements and layouts for both Android and iOS platforms and was involved in the transition of the project to .NET MAUI.
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