Projects
Not a gallery — case studies. Each one covers the problem, the architecture, the trade-offs, and what I'd do differently.
Multi-Tenant Wallet & Payments Infrastructure
From debugging silent payment failures to architecting a reconciliation-first wallet system across five payment providers.
- Node.js
- Express.js
- MySQL
- Redis
- Stripe
- +4 more
Driver Promotions with Fraud Detection
An incentive system designed on the assumption that users will try to game it — with geofence integrity enforced in SQL.
- Node.js
- MySQL
- Spatial SQL
- Redis