Jiří Vyhnálek is a senior software engineer based in Prague with over a decade of experience building front-end systems and framework-level tooling for products used by millions. He currently develops React-based Fluent UI components at Microsoft, tackling accessibility challenges end-to-end and enabling Teams and Office with robust, keyboard-first UI features. Previously he helped shape Twilio Flex Insights and maintained Electron-based desktop integrations for Teams, demonstrating a blend of product-focused frontend engineering and platform-level observability work. An active contributor to the widely-used microsoft/fluentui repo, he has shipped practical improvements like column resizing, truncation handling, and enhanced keyboard accessibility for complex data grids. Comfortable moving between research, implementation, and cross-team enablement, he pairs pragmatic engineering with a knack for delivering tooling that scales across large applications.
10 years of coding experience
13 years of employment as a software developer
Bachelor's degree, Softwarové inženýrství, Bachelor's degree, Softwarové inženýrství at Západočeská univerzita Plzeň
Fluent UI web represents a collection of utilities, React components, and web components for building web applications.
Role in this project:
Front-end Developer
Contributions:121 reviews, 1 commit, 89 PRs in 1 day
Contributions summary:Jiří primarily contributed to the development and enhancement of UI components within the Fluent UI web framework. Their work involved implementing column resizing functionality for tables and data grids, a key feature for data presentation. They also added support for truncation in `TableCellLayout` components, improving the display of content within table cells. Additionally, the user improved keyboard accessibility and added keyboard resizing capabilities, improving the user experience.
Fluent UI web represents a collection of utilities, React components, and web components for building web applications.
Contributions:355 pushes, 52 branches in 2 years
reactweb-applicationslitweb-uiweb-components
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Jiří Vyhnálek - Senior Software Engineer at Microsoft