Searching to hire a freelance AI Application Engineer or LLM/RAG programmer? I am Aldian Fazrihady, a Senior Freelance AI Application Engineer and Full Stack Developer available via Upwork. This topical hub organizes my core production AI engineering guides across agent frameworks, multimodal models, vector databases, and evaluation pipelines.

1. Agentic AI & Model Context Protocol (MCP)

2. Hybrid RAG, Vector Databases & Knowledge Graphs

3. Voice AI, Document OCR & LLM Evals

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About the Author — Hire Freelance Programmer Aldian Fazrihady

Aldian Fazrihady is a Top-Rated Senior Freelance Programmer, Freelance Full Stack Developer, and AI Application Engineer with 15+ years of production software engineering experience and Google Cloud Professional Cloud Architect & Data Engineer certifications. He specializes in building custom LLM & autonomous AI agents, RAG pipelines, Next.js/React PWAs, Python (Django/FastAPI), Go microservices, and serverless cloud infrastructure on Google Cloud Run and AWS.

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