Sein Him Law

• AI Engineer — LLM Systems · Production RAG · Agentic Pipelines · Full-Stack AI
• contact: lwseni@gmail.com

HKSoka · LLM/RAG Systems (hksoka.com/en) | 04/2026 to Present

Live production LLM platform — designed, built, deployed, and operated end-to-end: multi-layer RAG memory, agentic tool-use orchestration, billing infrastructure. 13 models across 4 LLM providers; 30M+ tokens processed; 82% of API calls fully background-automated (memory pipeline, classification, embedding). Document-scale ingestion via AWS Lambda — atomic proposition extraction, Gemini embeddings into pgvector; document size unbounded.

ML Pipeline · Production Automated Decision System | 01/2024 to Present

• Built and deployed production ML pipeline end-to-end — bootstrap sampling, optimizer design, and signal extraction — serving live automated decisions hourly; full ownership from data ingestion to deployment

• Statistical validation framework separating signal from randomness before deployment: multi-seed stress testing, 3D parameter stability analysis, out-of-sample median gating; validated and rejected theoretical optimisations against live system performance

• AWS production infrastructure: EventBridge scheduling, Docker image deployment, real-time Telegram alerting for live monitoring