Context
Cafe24’s shift to an open-API ecosystem required a scalable platform for third-party developers and partners.
Problem
- Customizations were expensive and slow to deliver.
- API reliability issues under sustained load risked platform stability.
Role
Product Manager / Control-tower lead for API lifecycle, docs, and ecosystem programs.
Actions
- Shipped 300+ APIs across commerce domains with versioning and changelog discipline.
- Established weekly control-center reviews; drove latency to the millisecond range.
- Launched app-store model with partner enablement and QA processes.
- Delivered multilingual documentation (EN/JP/KR) with concrete use-cases.
Impact
- ~90% reduction in customization costs; ~10% market-share growth.
- API stability improvements prevented outages for 2M+ stores during a critical CPU spike (90% → <60%).