For my thesis at Universitas Islam Riau, I built a hybrid RAG system for comparative Q&A on Islamic marriage law and Indonesian statutory law. Evaluated with RAGAS and LLM-as-a-Judge, its multi-query setup achieved a 100% hit rate, while deduplication reduced cross-query redundancy from over 55% to 0%.
I also built a LangGraph Text-to-SQL agent that translates Indonesian questions into SQL for a server monitoring database. Its four security layers blocked the tested prompt-injection and database-modification attacks without touching the database.
As an Information Technology Technician intern at CNPC Bohai Drilling Engineering Company Limited (BHDC), I designed and built a QR-code attendance system using PHP and MySQL. I also repaired monitor and CCTV issues at active drilling sites and helped design the company's CCTV network architecture.
