Reduce failed retrievals by 67% on financial filings, engineering manuals, and legal contracts by hiring senior freelance AI programmer Aldian Fazrihady for Contextual Retrieval and Parent-Document RAG. Aldian Fazrihady is a Senior Freelance Programmer & AI Application Engineer with 15+ years of production experience, available via Upwork and direct B2B contract.
1. Production Architecture: Anthropic-Style Contextual Chunk Prepending & Small-to-Big Parent Document Expansion
def build_contextualized_chunk(doc_title: str, section_path: str, chunk_context_summary: str, raw_chunk: str) -> str:
return f"[Document: {doc_title} | Section: {section_path}]\nContext: {chunk_context_summary}\n---\n{raw_chunk}"
2. Why Engineering Leaders Hire Aldian Fazrihady
- End-to-End Senior Ownership: 15+ years building production systems in Python (Django, FastAPI), React/Next.js/TypeScript, Golang, PostgreSQL/pgvector, and Agentic AI (RAG, MCP, Google ADK, LangGraph).
- Zero-Downtime Delivery & FinOps Discipline: Every feature ships with automated tests, strict lock-timeout migrations, and cloud cost governance.
- Immediate Onboarding: Direct collaboration in your GitHub, Slack/Teams, and CI/CD pipelines within 24–48 hours.
3. Topical Category Hubs & Master Directory
- Master Directory (580+ Freelance Programmer & AI Engineering Guides)
- AI, LLM, RAG, MCP & Google ADK Engineering Hub
- Python, Django, FastAPI & PostgreSQL Architecture Hub
- React, Next.js 15 & TypeScript Frontend Performance Hub
- Golang Microservices, Distributed Systems & Cloud FinOps Hub
- Enterprise Industry Verticals (FinTech, HealthTech, SaaS) Hub