Marcel Karas
Managing Director of Jungherz GmbH · Entrepreneur · Author
Technology with a stance. Impact over features.
You work directly with me, with no project manager in between. I’m supported by systems of my own that work for me like a team.
Technology is not an end in itself.
What interests me is what technology does for people. I have been at home in IT since 1997, when I started my first open-source project. For more than 15 years I have been building digital products as an entrepreneur. They grew out of real problems at work, and I still run them myself today.
That is why I know both sides: the vendor’s and that of the people who work with a piece of software every day. I bring this experience to every client project. So I first ask what should change for your people, and only then which technology fits.
Four principles for every project.
Build and change together
I build things myself and bring along the people who will work with them. That is how scepticism turns into acceptance.
We operate what we build
Responsibility doesn’t end at handover. What we develop, we keep running afterwards.
Structure, clarity, trust
To me they matter as much as the technology. You always know what we are working on and why.
Entrepreneurial, with an eye for what’s feasible
An honest assessment instead of slides. If it isn’t worth it, I say so.
In IT since 1997, an entrepreneur for more than 15 years.
- 2026
- since 2025 Head of IT, AI & Innovation at a planning and engineering firm: building an in-house AI workforce
- since 2024 Co-founder & Product Architect MonaHilft: voice AI for customer service
- since 2015 Founder & Managing Director Jungherz GmbH
- since 2010 Founder AppConfector: the app construction kit for SMEs
- 2003–2016 IT specialist and developer Callax Telecom, rola Security Solutions
- 1997 First open-source project Where it began: at home in IT ever since
- Training Technical business administrator (IHK)
Tools that fit the problem.
- AI-assisted development
- Process digitalisation
- Voice & chat AI
- Cloud architecture & operations (hosted in Germany)
- Full stack (Node, PHP, Python)
- MongoDB
- APIs & integration
What you can check.
Our own products
Four SaaS solutions in production, from an app construction kit to AI phone assistance.
Open source
Tools we build for ourselves, we publish. Among them the design system of this website.
The book
“SaS – Ein ‚a‘ weniger”: why companies will soon buy results instead of software (in German).