- German (native)
- English (fluent)
These lists are intentionally coarse and might be wildly outdated or incomplete. Feel free to ask for specifics.
Active collaboration with various open source projects ranging from software libraries to Linux distributions on various social coding platforms, mailing lists and IRC networks.
Many smaller self-built software components are openly released, some of which have users world wide.
Various projects involved requirements engineering and consulting services with international customers, ranging from passive troubleshooting support over systems architecture consulting to implementation workshops.