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heykelh/README.md

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🚀 About Me

Data/AI Engineer , Data Consultant and Data Governance specialist with 12 years of operational experience in safety-critical railway environments (SNCF). I build data platforms and agentic AI systems designed for regulated industries: banking, insurance, energy, transport.

  • 🔭 Currently building REGARD, a compliance copilot with deterministic-first agentic architecture (LangGraph, evaluation harness, 28/28 golden test cases)
  • 🏛️ Deep expertise in BCBS239 and DAMA-DMBOK governance frameworks
  • ⚙️ My philosophy: determinism first. LLMs handle only genuinely ambiguous cases; deterministic logic handles the rest. Motivated refusals, source citations and self-checking loops are non-negotiable.
  • 🎓 Master's in Data Engineering / Data Product Management, École des Mines (2026)
  • ⚡ Fun fact: I spent a decade keeping trains safe before deciding to do the same for data

🛠️ Tech Stack

Data & Backend

Python SQL Snowflake dbt FastAPI Supabase DuckDB Docker

AI & Agentic Systems

LangChain LangGraph Langfuse Groq Gemini

Frontend & Delivery

TypeScript Next.js Tailwind GitHub Actions Vercel Power BI

Governance & Frameworks

BCBS239 DAMA Data Quality

📊 GitHub Stats

Stats Top Langs

📈 Contribution Graph

Activity Graph

🌐 Portfolio & Contact

Portfolio Email Location

⭐️ Building reliable data systems, one deterministic pipeline at a time

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    Kuala Lumpur Real-Time Operations A cleaner and more urban visual style for monitoring city traffic, temperature, humidity, transit conditions, environmental signals, and analytics warehouse insigh…

    TypeScript

  2. bcbs239-data-governance-accelerator bcbs239-data-governance-accelerator Public

    Data Governance & Data Quality simulation for banking risk data, inspired by BCBS239 principles

    TypeScript

  3. finance-audit-dashboard finance-audit-dashboard Public

    📊 Finance Digital Audit Dashboard. Outil d'audit financier automatisé sur les entreprises du CAC40 — détection d'anomalies par ML, visualisation interactive et export PDF.

    TypeScript

  4. sncf-data-observatory sncf-data-observatory Public

    Real-time SNCF data quality observatory — GTFS-RT ingestion, Data Governance & AI analytics

    Python

  5. finance-data-hub finance-data-hub Public

    Consultant Data & IA mandaté par FrontierBank (banque fictive de taille intermédiaire, sous surveillance BCBS 239, préparant l'EU AI Act) pour concevoir et déployer son programme de gouvernance des…

    TypeScript

  6. regard regard Public

    Système IA agentique de conformité : pipeline RAG déterministe-first, orchestration LangGraph, multi-LLM (Groq Llama 3.3 70B + Gemini 2.0 Flash), autocontrôle LLM-juge, refus motivés avec journal d…

    TypeScript