Emily Hiller is a Staff Product Designer specializing in design systems with 13 years of experience building scalable, consistent UI at companies like GitHub, BuzzFeed, and now Datadog in New York. She has deep hands-on expertise implementing and documenting component libraries—contributing front-end code and Storybook integration to GitHub’s widely used Primer CSS design system. Emily moves fluidly between product design and engineering-facing systems, shaping both visual components and the infrastructure that makes them reusable across large teams. Known for stewarding design infrastructure and mentoring cross-functional teams, she combines practical UI development with product sensibility to reduce friction in product delivery. An experienced contributor to open-source design tooling, she brings a pragmatic focus on developer ergonomics as well as user-facing polish.
Primer is GitHub's design system. This is the CSS implementation
Role in this project:
Front-end Developer
Contributions:38 commits, 9 PRs, 32 pushes in 10 months
Contributions summary:Emily primarily focused on developing and modifying UI components within the Primer CSS design system. Their work includes creating progress bar and tooltip elements, along with modifying existing button components. The user also integrated Storybook for component documentation, highlighting the user's focus on UI development and documentation within the project. They also seem to be contributing to merging branches.
Contributions:10 commits, 1 PR, 24 pushes in 8 months
scssbuzzfeedsolidset-up
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Emily Hiller - Staff Product Designer, Design Systems at Datadog