Samuel Freiberg is a Software Engineer II at Microsoft with eight years of experience building scalable front-end solutions and testing infrastructure for Office products used by over a billion people. Based in Scottsdale, AZ, he focuses on cross-platform React Native E2E testing and CI integration, ensuring monthly releases meet high quality standards. Samuel is an active open-source contributor to high-profile Microsoft projects like react-native-windows and fluentui-react-native, where he has driven accessibility improvements and refined UI components and focus behavior. His background spans full-stack project leadership and data engineering—from managing a PayPal-affiliated senior design project to consolidating multi-company SQL systems during an internship—demonstrating both technical breadth and team coordination. He combines pragmatic engineering with an eye for inclusive UX, often implementing accessibility properties and E2E tests that improve real-world usability.
A react-native component library that implements the Fluent Design System.
Role in this project:
Front-end Developer
Contributions:576 reviews, 162 commits, 304 PRs in 2 years 11 months
Contributions summary:Samuel primarily contributed to the development of React Native UI components, specifically focusing on enhancing the RadioButton and Checkbox components within the FluentUI React Native library. The commits involved modifying the settings, styles, and rendering logic of the components to improve their visual presentation and functional behavior, including the addition of accessibility features and the correct handling of focus states. The user also added E2E test functionalities.
A framework for building native Windows apps with React.
Role in this project:
Front-end Developer
Contributions:21 reviews, 18 commits, 32 PRs in 9 months
Contributions summary:Samuel primarily contributed to enhancing accessibility features within the React Native Windows framework. Their work focused on implementing and configuring accessibility properties for UI elements, including `accessibilityControls`, `accessibilityItemType`, and `accessibilityLabeledBy/DescribedBy`. The user's contributions involved modifying view configurations, adding TypeScript declaration files, and updating component properties to improve the accessibility of applications built with the framework. These changes aimed to improve user experience and inclusivity.
dotnetreactuwpxboxwindows
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