Data Engineer · Energy · Interactive systems

Tarek Chehade

Data Engineer at SMA Solar Technology AG — turning messy industrial and public data into clear, interactive systems. Based in Erfurt, with professional focus on renewable energy, analytics engineering, and browser-based dashboards.

Born 08.11.1990 · Beirut Nationality Lebanese Location Erfurt, Germany
Curriculum vitae GitHub LinkedIn Email

Profile

I work at the intersection of renewable energy, analytics engineering, and interactive dashboards. Day to day I use Python, R/Shiny, SQL, and modern data platforms — shipping tools people can click, not slide decks that go stale overnight.

Before Germany I built experience across engineering, R&D education programmes, university teaching, and educational technology in Lebanon and Saudi Arabia. I entered Germany on 31 August 2022 (EU Blue Card) and have worked as a Data Engineer since then — first at Entrenco GmbH (Regensburg), now at SMA Solar (Kassel).

I also run a public dashboard hub on this VPS — the same stack I use to ship energy analytics, live demos, and stakeholder-ready apps.

Skill constellation

Pick a galaxy · hover the stage · click a star for signal strength

Stack
core

Career journey

Scroll the path · click a stop to expand · filter by region

Full path from engineering abroad to energy data in Germany.

Python scripts, data platforms, and analytics for renewable-energy operations. Based in Erfurt with part-time commute to Kassel.

PythonData platformsRenewablesOps analytics

First German role after EU Blue Card entry (31.08.2022). Automation, dashboards, and data engineering in Regensburg.

AutomationDashboardsETL

Educational technologies: e-learning systems, robotics programming, app development, and 3D-printing courses. Parallel Google Data Analytics certificate (2021).

EdTechRoboticsApps3D printing

University teaching in mechatronics, robotics, and virtual instrumentation — overlapping with the Airbus education programme.

TeachingRoboticsMechatronics

Coordinated education programmes and curricula across the Middle East for the Airbus foundation STEM track.

STEM educationCurriculumR&D

Technical systems and maintenance engineering — first professional chapter after the Mechatronics Master.

EngineeringMaintenanceSystems

Learning path

Swipe / click a chapter — arrow keys work too

Chapter detail 4 / 4

German language track

Goethe-Institut · München

Daily working language in Germany. Goethe-Zertifikat B1 issued 18.03.2024 (modules across 2023–2024). Communicative B2 in day-to-day professional use; also Arabic (native), English (C2), French (B1).

Goethe B1DE B2EN C2AR native

Language reach

Who can I talk to? Toggle languages — the counter reacts live

Potential conversation pool

0

humans I can talk to

0% of world population

Tap languages to rebuild the reach. Numbers are approximate total speakers (incl. L2). Overlap exists — the sum is an optimistic upper bound.

Volunteering

What I build

Energy & MaStR analytics

Nightly ETL from BNetzA Marktstammdatenregister → Parquet/DuckDB → Shiny views: solar build-out, storage, wind, regional Kreis dashboards.

Live & API-driven dashboards

Day-ahead EU electricity prices, live solar irradiance maps, auto-refreshing charts — real data, not screenshots.

Platform & delivery

Multi-app Shiny hub behind nginx, systemd, Grafana monitoring, documentation site, reproducible GitHub Actions pipelines.

Methods & verification

Reproducible ETL, documented schemas, and data-verification workflows so every dashboard number can be traced to a source row.

Selected work (live)

Public demos on this server — click through; no install required.

Infrastructure & docs: Mission Control · Documentation · Live server metrics

Contact

Open to collaborations on data products, energy analytics, Shiny delivery, and research tooling. Prefer email — phone signal at work is sometimes unreliable.