Kelsey Collins is a Lead Software Engineer with 12 years of experience specializing in front-end development and user-facing products, currently driving Make Core at Figma. She has a track record of architecting scalable features and infrastructure—she led cross-team versioning and test infrastructure efforts for Figma Make and built the Smart Animate feature for Figma Sites, coordinating upstream fixes to the Motion library. Previously at Microsoft she drove adoption of Fluent UI into Office Online, contributed to the Fluent source, and delivered measurable performance improvements like a 36% relative reduction in mobile prototype terminations. Comfortable across the full stack, Kelsey pairs hands-on React/TypeScript component work (including contributions to the popular microsoft/fluentui project) with product-focused collaboration across design and PM. Based in Woodinville, WA, she brings systems-thinking from dual CS and Systems Engineering degrees to practical, production-facing solutions.
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:14 reviews, 32 commits, 45 PRs in 3 years 8 months
Contributions summary:Kelsey primarily focused on enhancing the `fluentui` React components. Their work centered around improving the `ContextualMenu` and `CommandBar` components, specifically addressing the behavior of submenus, adding chevron icons, and implementing functionalities like `onMenuOpened`. They added tests to ensure the correct behavior of these changes. Furthermore, the user contributed to Keytip functionality, by adding and updating relevant tests and components, alongside modifications to the `Popup` component.
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