№001 · Kuala Lumpur · GMT+8The Folio · Vol.I
Faiz KasmanSoftware Engineer · Engineering FolioBuilt to ship.
- P.01 — Travel Booking Platform · FPX & resellers
- P.02 — Schools Quiz Platform · Fairness at scale
- P.03 — JomJual · Multi-tenant commerce
- P.04 — Lunara · Marketplace sync
- P.05 — Signet Protocol · Agent bonds
- Now · Payments & platform engineering
- Available for select projects
- KL, GMT+8
- Payments · Queues · Multi-tenant SaaS
- Curlec · Stripe · BullMQ · Next.js
Selected Work
Index →- 01Travel Booking PlatformDual-rail FPX checkout, reseller commissions, ops console.
- 02Schools Quiz PlatformTimed national quiz. Default-deny RLS, 10k-concurrent target.
- 03JomJual14 tables, 11 tRPC routers, one subdomain per store.
- 04LunaraSub-3s sync across Shopee, TikTok Shop, Lazada.
- 05Signet ProtocolStake USDC as agent bond. Two of three contracts shipped.
- 06FA AnalysisAI stock analytics. Parallel fetch cut latency 5s → 1.5s.
- 07Python AlgoXAUUSD backtesting. Honest about what it cannot model.
Writing
All posts →- Why Your API Rate Limiter Is Costing You Real Traffic2026-06-24
- When Your Inventory Math Doesn't Match What's Actually in the Warehouse: How Rounding Errors and Manual Updates Turn Small Problems Into Supply Chain Disasters2026-06-22
- Why Your Vendor Lock-In Isn't Just a Tech Problem—It's Bleeding Your Operating Budget2026-06-22
Freelance
Available for select engineering + advisory work on payment infrastructure, multi-tenant SaaS, and queue systems.