Kidsy

Kidsy is a resale marketplace for open-box and gently used kids’ gear. Resale marketplaces are operationally sensitive—small UX or workflow failures quickly turn into customer support load, supply churn, and trust issues.

Problem: Common resale marketplace issues Kidsy needed to avoid:

• Brittle listing and inventory states (available/sold/hidden/returned)
• Inconsistent buyer experience (search, discovery, checkout edge cases)
• Operational overhead (moderation, disputes, catalog quality)
• Need for continuous iteration as real-world transactions reveal gaps

Solution: Horizon Labs provided hands-on engineering support to:

• Ship and harden core marketplace flows end-to-end
• Improve reliability and edge-case handling as transaction volume increased
• Enhance operability so internal teams could manage growth without ballooning support headcount
• Maintain delivery momentum with strong communication and embedded collaboration

Impact:

• Stabilized and improved the buyer/seller marketplace loop as the platform grew
• Reduced operational fragility by addressing real-world transaction edge cases
• Increased internal confidence and velocity through an embedded engineering partner

Implemented Platform Features:

• Listing creation and management
• Discovery/search improvements
• Transaction and payment flow stability
• Admin/support tooling improvements
• Operational edge-case handling (refunds, disputes, item states)