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04/06 · E-commerce
B2B Marketplace
Recycled-plastics commerce with direct purchase and RFQ. Selling to invited customers since 1 September 2026, multi-vendor in production since 15 September.
Live, multi-vendormarketplace.internal
100%
prices derived server-side
0
client write privileges
- 100%
prices derived server-side
- 0
client write privileges
About the project
Before launch I audited the marketplace against the live database inside aborted transactions and proved a customer could set their own price. The fix derives every price in the database and revokes client writes.
Checkout supports card via Stripe and bank transfer via SPEI, the Mexican interbank system.