# try asking:

# or type a command: help · ls projects/ · theme amber

$ cat about.md

I’m a senior data scientist in Trier, Germany, with a background in applied mathematics and 4+ years of experience shipping production-grade AI in heavy industry. My specialty is hybrid physics + machine learning: combining first-principles process models with learned components — most notably closed-loop endpoint control for large-scale electric arc furnaces.

I work across the full stack, from OPC UA / Siemens S7 signal ingestion and InfluxDB / PostgreSQL pipelines to ONNX model deployment, Grafana operator cockpits, and fully on-premise LLM agents orchestrated via MCP. Beyond industry, I’m exploring quantitative finance, causal inference, and privacy-focused local AI.

$ ls projects/

EAF Endpoint Control

Hybrid physics + ML steel temperature and chemistry prediction with closed-loop recommendations — part of a program delivering up to ~20% tap-to-tap time reduction and ~8% energy savings at a European steel plant.

physics + ml · time-series · production

Forecastream

Zero-training probabilistic forecasting module returning p10/p50/p90 quantile bands on any plant signal. Live on 12+ EAF cooling panels as a first-class Industream product.

forecasting · quantiles · product

Plant Advisor

Fully on-premise LLM advisory layer on top of hybrid models: explains risk and proposes countermeasures to operators, grounded in live signals via MCP — no data leaves the plant.

local llm · mcp · trip prevention

FlowMaker ML Library

Reusable no-code ML components for time-series, image and sound data in an industrial AIoT platform — cutting time-to-deploy for new use cases from weeks to hours, packaged ONNX-first.

no-code · onnx · aiot

charraki.com

This site: a dependency-free terminal UI with a streaming AI assistant that has real tools — page navigation, CV download, and taking messages for me. See how it works.

cloudflare · llm tools · vanilla js

$ cat skills.txt

full breakdown: type cat skills.txt in the terminal above.

$ git log experience/

  1. Senior Data Scientist — DSD Automation & Industream

    Trier, Germany · Luxembourg · April 2024 – present

    End-to-end ownership of production AI: hybrid physics + ML endpoint control for electric arc furnaces, probabilistic forecasting (Forecastream), causal ML, Grafana operator cockpits, and a fully on-premise LLM Plant Advisor orchestrated via MCP. Mentoring junior data scientists on production engineering.

  2. Data Scientist — SMS group / SMS digital

    Düsseldorf / Mönchengladbach, Germany · August 2022 – March 2024

    Four generations of deep learning models for closed-loop EAF voltage control: ~10% more power-on time and ~2 extra heats per day across two plant shells — a seven-figure annual margin uplift per furnace. Official SMS group reference letter for exemplary performance.

  3. Data Scientist Intern — Paul Wurth (SMS group)

    Luxembourg · June – December 2021

    Predictive maintenance in steel: ML/DL time-series models for anode temperature prediction, data validation pipelines, and anomaly detection on noisy industrial data.

  4. M.Sc. Applied Mathematics / Data Science

    Télécom Nancy / Université de Lorraine · 2019 – 2021 · graduated with honors

    Foundation in applied mathematics, machine learning, and data science.

$ cat architecture.md

This site is a dependency-free static page with a real AI agent behind it — built to stay simple, cheap, and hard to abuse:

browser ──POST /api/chat──▶ Cloudflare Pages Function ──▶ OpenAI Responses API
   ▲                              │
   │                              ├─ knowledge: /data/profile.json (server-side)
   └──── NDJSON stream ◀──────────┤
        text deltas + UI actions  └─ tools: show_section · offer_cv · leave_message

$ ./contact.sh

↓ download CV (PDF)