Here are some of the projects I've been working on recently. You can see the code of some of them on my github profile. Some smaller snippets are available on gist. Contact me if you want me to work for you.

Share your travel experience and explore the world on My personal page is at /

Mathics is a free, general-purpose computer algebra system with an online interface. There is also a separate project homepage.

A platform to share and visually browse networks. Particularly useful to explore co-occurrence networks of words in documents such as twitter hashtags. Previously known as twex, the twitter explorer.
nexp is a marketplace for products of sustainable companies, supporting social non-profit organisations with each purchase. (Still in beta, not really to be used yet.)


Homepage for an annual event by the Styrian Chamber of Agriculture.


Homepage for a project by the Styrian Chamber of Agriculture.

AURO Kubelka

Small business homepage with online shop.

Offline applications

There’s no homepage for the following projects (for obvious reasons, as I think).

Purlin punching optimization

Optimization of a punching process maximizing speed and minimizing waste, for Zeman Bauelemente Produktionsges. mbH.
Punching machine

Batch optimization

Optimization of the assignment of orders to commission agents, for SSI Schäfer / Salomon Automation GmbH.

Packing optimization

Optimization of the utilization of three conveyor belts for packing, for Fresenius Kabi Austria GmbH.


A system for managing telephone numbers and other information for the operations center of the Styrian Red Cross in Liezen.
RLS Info