End-to-end system thinking in action. Each project covers frontend, backend, and infrastructure decisions — plus the trade-offs involved.
Indonesian home & living retailer needed to move from showroom-only to online sales. Built full e-commerce platform connecting physical inventory to digital storefront. Result: expanded reach beyond Tangerang showroom.
Warehouse and logistics platform needed automated pricing, discount rules, and coupon management. Built backend systems to handle complex pricing logic at scale.
White-label RAG platform for document Q&A. Businesses upload docs, embed AI assistant anywhere. My demo: chat with my CV on this site and Telegram.
Built real-time systems for major Indonesian banks (Mandiri, Bank Raya, CIMB Niaga, Nobu, and many more). Handled high-frequency trading data with 10K updates/sec.
Legacy codebase slowing feature delivery. Modernized 200K LOC while shipping 12 features. Deploy time: 4 hours → 20 min.
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