E-Commerce Payments & Webhook Infrastructure
- Architected an event-driven Kafka queue system for high-volume webhook consumption, decoupling Shopify/WooCommerce ingestion from internal microservices.
- Spearheaded a new partial payments architecture using Node.js, TypeScript, and PostgreSQL, reducing order cancellations by 20%+.
- Built highly concurrent backend services for one-click WhatsApp login, supporting traffic from 40M+ active users.
- Integrated Redis caching layers to reduce database read load during peak flash sale events.