The patterns behind production AI systems.
The architecture patterns behind my AI work: private LLMs, RAG, decision intelligence, data pipelines, governed deployment, and reliability evaluation.
Private LLM / RAG Architecture
- 01Documents
- 02Ingestion
- 03Parsing
- 04Chunking
- 05Embeddings
- 06Vector Store
- 07Retrieval
- 08Context Assembly
- 09LLM
- 010Source-Grounded Answer
- 011User Feedback
The quality of a RAG system comes from chunking, metadata, retrieval filters, source citations, local model constraints, hallucination controls, and feedback loops. The model is only one piece of the system.
Decision Intelligence Architecture
- 01Operational Data
- 02Validation
- 03Constraint Layer
- 04Rules / Scoring / Optimization
- 05Recommendation Engine
- 06User Workflow
- 07Decision Trace
- 08Outcome Capture
Decision systems need constraints, recommendation logic, human-in-the-loop design, audit trails, and scenario comparison. The goal is better decisions, not invisible automation.
Deployment Architecture
- 01Google Compute Engine VPS
- 02Nginx reverse proxy
- 03Docker Compose
- 04Next.js standalone container
- 05Static-first MDX content
Prior systems used patterns like FastAPI, React, Postgres, workers, Docker, Nginx, SSO/RBAC, and monitoring. This portfolio uses a simpler production container: Next.js standalone output behind host-level Nginx.
Data Pipeline Architecture
Useful enterprise AI often starts with disciplined ingestion: CSV validation, file hashes, incremental loads, metadata extraction, data-quality checks, stale-value detection, repeated-value detection, and batch processing that can be replayed.
Security & Governance Architecture
Governance appears in SSO, RBAC, department-aware access, audit logs, data boundaries, safe mode, rollback, review gates, and approval states. It should be part of the system users touch.
Evaluation & Reliability Architecture
Production AI evaluation includes RAG answer grounding, retrieval relevance, citation behavior, human review loops, confidence/severity separation, safety-sensitive summarization, false positive and false negative handling, latency, fallbacks, monitoring, logging, rollback, and safe-mode thinking.