Tobias Witter

About

I am a hands-on technical leader and current CTO at sun-X GmbH, specializing in engineering AI and IoT solutions for the solar industry. Backed by a PhD in Economics and Management Science from Humboldt-Universität zu Berlin, I combine over 9 years of hands-on data science experience with 7+ years of leading technical projects. Despite my executive title, my day-to-day focus remains heavily on active development—writing code, building ML/AI pipelines, and designing scalable system architectures. I am passionate about turning complex data into production-ready software that delivers measurable results.

Experience

• sun-X (2 yrs 3 mos)
  • Chief Technology Officer
    Apr 2025 - May 2026 · 1 yr 2 mos

  • Head of Data Science
    Jul 2024 - Apr 2025 · 10 mos

    Tech Stack: Python, Airflow, MLflow, SQL/NoSQL, Grafana, PowerBI

  • Lead Data Scientist
    Mar 2024 - Jul 2024 · 5 mos

• Weeone ()
  • IT Consultant (Data Science & Data Privacy)
    Mar 2024 - Nov 2024 · 9 mos

  • Data Scientist
    Jan 2024 - Feb 2024 · 2 mos

• Research Assistant (Open Science Data Center) at TRR 266 Accounting for Transparency
  Jul 2019 - Sep 2023 · 4 yrs 3 mos

  www.accounting-for-transparency.de

• Research Assistant (Institute of Accounting and Auditing) at Humboldt-Universität zu Berlin
  Oct 2017 - Sep 2023 · 6 yrs

  Teaching includes Management Accounting (German), Valuation (English), Accounting Theory (English), Empirical Research (German); Research: Financial Accounting; https://www.wiwi.hu-berlin.de/de/professuren/bwl/rwuwp/staff

• Visiting Researcher at Universität Paderborn
  Oct 2021 - Mar 2022 · 6 mos