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Praciller/README.md

Pakon Poomson - AI Engineer and Data Engineer

Pakon Poomson

AI Engineer & Data Engineer
RAG · Agentic Workflows · LLM Apps · Data Platforms · ML/MLOps · Thai AI/Data Applications

I build evidence-first AI and data systems with local-first demos, typed APIs, validation gates, evaluation artifacts, privacy-safe fixtures, and explicit limitations.

Portfolio LinkedIn Email GitHub

RAG LLM Apps Data Platforms ML/MLOps Thai AI

Current Focus

  • Building local-first AI/data systems with measurable evaluation and guardrails.
  • Designing reproducible data pipelines and analytics platforms.
  • Exploring RAG, agent workflows, Thai AI applications, and production-minded ML systems.

Featured Engineering Work

Data Engineering Platforms

Urban Mobility Data Platform

Data Engineering

Local fixture ingestion, validation, DuckDB/dbt-style marts, Dagster definitions, read-only API, and dashboard evidence.

Stack: Python · DuckDB · dbt-duckdb · Dagster · FastAPI · React

RetailGuard Data Platform

Retail Data Platform

Incremental Bronze extraction, protected PySpark Silver, blocking DuckDB quality gates, idempotency proof, and local evidence report.

Stack: Python · PostgreSQL · FastAPI · PySpark · DuckDB · Airflow

RAG / Agentic AI Systems

Customer Support RAG Triage Agent

RAG / Agentic Workflow

Typed seven-node LangGraph workflow with retrieval, grounding checks, provider fallback/cache controls, and deterministic offline evaluation.

Stack: Python · FastAPI · LangGraph · Qdrant · FastEmbed · React

Thai Procurement Intelligence

Public Data / Evidence AI

Checksummed DGA snapshot, provenance-aware ingestion, bilingual evidence UI, deterministic retrieval evaluation, and cited assistant responses.

Stack: Next.js · FastAPI · PostgreSQL · SQLAlchemy · Public data

ML / MLOps

Thai Review Sentiment Intelligence

Thai NLP / ML Governance

Wisesight corpus workflow, Thai tokenization, macro-F1 model governance, confidence routing, explainability metadata, and monitoring demo.

Stack: Python · PyThaiNLP · scikit-learn · FastAPI · React

Climate CO2 Forecasting ML

Forecasting / MLOps

Chronological holdout, rolling-origin backtesting, interval coverage monitoring, metadata-only registry policy, and API/dashboard contracts.

Stack: Python · statsmodels · scikit-learn · PyTorch · FastAPI · React

Multimodal / Product AI

Receipt AI Expense Tracker

Multimodal AI / Local Storage

Mock-first multimodal parsing, Buddhist Era date normalization, schema/financial validation, and human review before IndexedDB persistence.

Stack: Next.js · TypeScript · Zod · IndexedDB · AI provider routing

AI Resume Matcher

Document AI / Human Review

PDF/JD validation, 9arm-first provider routing, strict Pydantic report schema, deterministic mock review path, and hiring-scope limitations.

Stack: FastAPI · React · Pydantic · pypdf · Multi-provider LLM routing
Additional projects

Technical Stack

Core stack icons

SQL PySpark DuckDB dbt-style modeling Airflow LangGraph RAG Evaluation Guardrails Provider Routing MLflow-style tracking

Engineering Principles

Reproducibility

  • Local-first demos
  • Deterministic fixtures
  • Clear setup paths

Reliability

  • Validation gates
  • CI-verifiable workflows
  • Explicit limitations

AI System Safety

  • Grounded outputs
  • Provider routing
  • Human-review boundaries

Data Quality

  • Typed contracts
  • Privacy-safe fixtures
  • Evidence-based documentation

Selected AI Credentials

  • AIAT Super AI Engineer Season 6: Foundation AI (Theory), 2026
  • Anthropic Academy: Claude API, Claude Code, MCP, subagents, agent skills, and AI Fluency
  • Google Cloud AI/ML skill badges: Vertex AI, Gemini, Imagen, Multimodal RAG, BigQuery ML, Document AI
  • AIS Academy Prompt Engineering & Agentic AI

Contact

Email · LinkedIn · Portfolio · GitHub

Pinned Loading

  1. customer-support-rag-triage-agent customer-support-rag-triage-agent Public

    Deterministic LangGraph support triage with Qdrant retrieval, grounded responses, evaluation, and an inspectable React console.

    Python

  2. receipt-ai-expense-tracker receipt-ai-expense-tracker Public

    Local-first multimodal receipt expense tracker with Gemini routing, Thai/English parsing, Zod validation, IndexedDB storage, and analytics.

    TypeScript 1 1

  3. ai-resume-matcher ai-resume-matcher Public

    Production AI resume matcher with FastAPI, React, validated multi-provider analysis, skill-gap guidance, and interview preparation.

    Python

  4. climate-co2-forecasting-ml climate-co2-forecasting-ml Public

    Atmospheric CO2 forecasting and anomaly detection with Python, PyTorch, FastAPI, React, Docker, and reproducible time-series evaluation.

    Python

  5. explainable-cancer-diagnosis-ml explainable-cancer-diagnosis-ml Public

    Explainable breast cancer classification with scikit-learn, PyTorch, SHAP, FastAPI, React, Docker, and CI.

    Python

  6. thai-procurement-intelligence thai-procurement-intelligence Public

    Bilingual Thai procurement intelligence platform with governed official-data ingestion, PostgreSQL/pgvector search, provenance, quality evidence, and cited AI assistance.

    Python