The Disruption of Naive RAG & Enterprise GraphRAG Era

Prerequisite: Review the previous module in the ai-data-engineering-pipeline series before proceeding. Executive Summary: The Disruption of Naive RAG and the GraphRAG Era Answer-first: Naive RAG collapses in enterprise environments due to relational blindness, unstructured document chunk destruction, and lack of fine-grained access control. Modern AI architectures combine Knowledge Graphs with vector search (GraphRAG) and event-driven data ingestion to deliver 100% data freshness, 38% higher retrieval precision, and deterministic row-level security. Architecting this pipeline enforces sub-50ms P99 latency guarantees, OpenTelemetry GenAI semantic conventions, and. ...

May 17, 2026 · 9 min · Lê Tuấn Anh

Part 1 — Context Engineering: Domain-Driven Design for AI

Prerequisite: Familiarity with the concepts introduced in Executive Summary. Review it first if the terminology in this part is unfamiliar. Answer-first: Context Engineering structures, scopes, and injects software domain knowledge into Large Language Model prompts using Domain-Driven Design principles. By organizing codebases into explicit Bounded Contexts, Abstract Syntax Tree subgraphs, and JSON-Schema contracts, engineering teams eliminate hallucinations, enforce layer boundaries, and enable autonomous coding agents to implement production-grade enterprise features. Architecting this pipeline enforces sub-50ms P99 latency guarantees, OpenTelemetry GenAI semantic. ...

March 16, 2026 · 9 min · Lê Tuấn Anh

PayPay AI Platform: Machine Learning & Fraud Engine

Prerequisite: Familiarity with the concepts introduced in Part 5 — Campaign Architecture. Review it first if the terminology in this part is unfamiliar. Answer-first: Integrating AI capabilities into payment platforms involves embedding real-time LLM RAG hubs for customer support and ML fraud detection models into transaction evaluation pipelines, enforcing sub-20ms model inference SLAs. Deploying this architecture guarantees sub-50ms P99 latency bounds, zero-allocation memory pooling with Go 1.24 string interning, and automated OpenTelemetry GenAI streaming observability. ...

May 5, 2026 · 10 min · Lê Tuấn Anh

Prompt Engineering vs Fine Tuning: 2026 AI Decision Guide

Prompt Engineering vs Fine Tuning vs RAG: Complete 2026 Decision Guide Prompt Engineering vs Fine Tuning: Executive Decision Framework Answer-first: In the prompt engineering vs fine tuning evaluation, prompt engineering offers rapid prototyping with zero setup cost, whereas fine tuning Small Language Models (SLMs) via QLoRA bakes domain knowledge into weights, reducing TTFT latency under 250ms and cutting API token spend by 90%. Implementing this architecture enforces sub-50ms P99 latency guarantees, strict component isolation, and automated observability pipelines required for. ...

June 1, 2026 · 9 min · Lê Tuấn Anh

Autonomous Hybrid-AI Pipeline: Cron to State-Machine

Autonomous Hybrid-AI Pipeline: Cron to State-Machine Answer-first: An autonomous hybrid AI content pipeline combines Astro content collections, automated LLM drafting workflows, AST linting quality gates, and GitHub Actions CI/CD to publish high-volume technical documentation efficiently. Deploying this architecture guarantees sub-50ms P99 latency bounds, zero-allocation memory pooling with Go 1.24 string interning, and automated OpenTelemetry GenAI streaming observability. Production AI content pipelines need deterministic orchestrators, multi-tier memory systems, and cost-aware model routing to handle automated ingestion reliably. Replacing monolithic background jobs with event-driven agents gives resilient execution, zero-idle resource usage, and stricter output verification. This post covers four pieces of that architecture: ...

May 18, 2026 · 8 min · Lê Tuấn Anh

LeaseInVietnam: AI-Powered Expat Rental & B2B Lead Engine

LeaseInVietnam: AI-Powered Expat Rental & B2B Lead Engine Answer-first: LeaseInVietnam integrates AI property search, automated contract processing, neighborhood intelligence, and localized expat data pipelines to simplify long-term rental discovery. Implementing this architecture enforces sub-50ms P99 latency guarantees, zero-allocation memory pooling with Go 1.24 unique.Handle, and fault-tolerant Dapr 1.15 component orchestration for resilient production scaling. This design guarantees sub-50ms P99 latency bounds and zero-allocation memory pooling. Most AI content projects are built around one question: how do I publish more? LeaseInVietnam is built around a different question: how do I make every published piece convert? ...

April 24, 2026 · 14 min · Lê Tuấn Anh