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CMUsed
A campus-specific marketplace web app for CMU students to buy and sell items, enabling convenient and trusted transactions within the university community. As a product designer, I shaped the end-to-end user experience, from research and concept development to interface design and interaction flows.
Discovery Feed
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We organized the information architecture around how students already think about secondhand shopping. Familiar categories, search, and recent listings reduce cognitive load while still supporting both goal-driven searching and more exploratory browsing.
Listing Details
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The listing page brings together the information users need to evaluate both the product and the seller. Surfacing price, condition, seller activity, and communication in the same context reduces unnecessary navigation and supports more informed decision-making.
Onboarding
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Trust emerged as more than a safety feature; it directly affected whether students felt comfortable continuing a transaction. Seller identity and activity therefore became part of the core experience rather than information hidden deeper in the interface.