Selected projects demonstrating expertise in distributed systems, data engineering, and high-performance backend architectures.
Enterprise-grade distributed system processing 1M+ daily WhatsApp messages through Meta API. Features concurrent workers, automatic retry logic, and real-time monitoring dashboard.
Airflow-orchestrated ETL pipeline processing 100K+ user events daily for audience segmentation. Generates ML-powered user profiles with 35% improved targeting accuracy.
JWT-based authentication microservice supporting thousands of merchants on WhatsApp storefront platform. Implements OAuth2, RBAC, and comprehensive audit trails.
.NET Core backend integrating Ethereum smart contracts for Self-Sovereign Identity (SSI). Developed JavaScript SDK enabling decentralized authentication for Web3 applications.
Unified REST API consolidating multiple e-commerce platforms (Tokopedia, Shopee, Lazada) into single interface. Handles order sync, inventory management, and multi-channel fulfillment.