Devon Mack is a Senior Software Engineer with nine years of hands-on experience building scalable web and front-end systems, currently at StackAdapt in Toronto. He has a strong Shopify background—rising through the Dev Degree program into multiple engineering roles—where he contributed to admin UIs, payment/reporting infrastructure, and service management tooling. An active open-source contributor, he improved Shopify’s widely used Polaris design system by adding flexible UI props and fixing edge-case behaviors to make components more usable. Devon is also an entrepreneur: he founded LoL Sketch, a monetized multiplayer drawing game serving ~15,000 monthly users, demonstrating product and growth instincts beyond engineering. His early work spans automation and bioinformatics, where he built scripts that eliminated hour-long analyses, reflecting a knack for practical efficiency gains. He combines full-stack fluency with a user-focused approach and a track record of shipping impactful developer and customer-facing features.
9 years of coding experience
6 years of employment as a software developer
Shopify Dev Degree - Bachelor of Computer Science Honours, Shopify Dev Degree - Bachelor of Computer Science Honours at Carleton University
Shopify’s design system to help us work together to build a great experience for all of our merchants.
Role in this project:
Front-end Developer
Contributions:11 commits, 11 PRs, 49 pushes in 9 months
Contributions summary:Devon primarily contributed to the development of UI components within the Shopify Polaris design system. Their work involved adding new functionalities like the `textAlign` prop to the `Button` component and enhancing existing components like `DataTable` and `DropZone`. These changes included allowing JSX in headers for `DataTable`, adding a prop to disable the scroll indicator, and fixing an issue related to the `allowMultiple` prop in `DropZone`, thereby improving component flexibility and usability.
Contributions:1 release, 41 pushes, 1 branch in 1 year 6 months
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Devon Mack - Senior Software Engineer at StackAdapt