Narratives on the problems, architectures, and production thinking behind each system.
Production financial system for a health-worker cooperative. Double-entry accounting, automated batch processing, five user roles, and legacy Excel data migration.
End-to-end ML pipeline for 45 IDXBLUE stocks. MLflow experiment tracking, Grafana monitoring, Docker deployment, and automated retraining. The public repo is a simplified version of the production system.
Detect-then-classify architecture for high-accuracy object recognition, optimized for edge deployment with ONNX and INT8 quantization. The public repo is a simplified version of the enterprise system.
Interactive RAG chatbot answering questions about my CV. Built with LangChain LCEL, FAISS, FastEmbed (ONNX), Groq Llama 3.3, and RAGAS.
A RAG system built from collaborating agents: a router, a retrieval agent, an evaluator, and a summarizer, held together by typed contracts. Works on any document set, from books and manuals to internal knowledge bases.
Playwright-based scraper that searches 2,500+ products across 4 Indonesian e-commerce platforms, with anti-bot evasion.
AI-driven chess variant exploring decision systems and heuristic search, using Minimax with Alpha-Beta pruning for a custom rule set.