Software engineer, researcher, and tennis coach.

I’m Jan, a software and security engineer based in Munich. I contribute to building Tweeener, where we empower tennis people to explore planning and management on their own terms.

My Life on Tour

My Last Years: Scaling ZK-Rollups, Coaching Pro Tennis, and a New Chapter Life has a funny way of taking you on wildly different, yet equally intense paths. If you looked at my calendar over the past year, you would have seen a chaotic, beautiful spl...

Email server ianzn.com

3 Years of Self-Hosting Mail: How I Run a Bulletproof Mailcow Server in production. Self-hosting an email server has gained a reputation as a modern tech horror story. If you mention it on Reddit or Hacker News, you will inevitably be flooded with wa...

My Story as a Researcher

Beyond Blind Trust: My Journey in Privacy-Preserving Cryptography and Data Sovereignty We’ve all heard the foundational rule of the internet: Don't trust, verify. But as a computer engineer and researcher, I’ve spent the better part of my career aski...

How to get in touch

Please reach out and contact me by Email.

Work

  1. Company
    Tweeener
    Role
    Software Developer
    Date
  2. Company
    Quantstamp Inc.
    Role
    Golang Developer
    Date
  3. Company
    Technical University of Munich
    Role
    PhD Student / Researcher
    Date
  4. Company
    ZHA
    Role
    Internship
    Date
  5. Company
    Porsche AG
    Role
    Internship
    Date
  6. Company
    Technical University of Munich
    Role
    Student (Bachelor / Master)
    Date
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