Harald Welte is a independent software developer and consultant[1] in the
fields of operating system development and network security, as well as
high-performance data communications and embedded computing.  For a number of
years, he is the chairman of the netfilter/iptables[2] project, a Free Software
solution for Linux-based network firewalls.

  During the last six years, he has been contracted for projects by various
international companies of all industries, ranging from software vendors to
banks to manufacturers of networking gear.

  He licenses his software under the terms of the GNU GPL, and is determined to
bring all users, distributors, value added resellers and vendors of projects
based on his software in full compliance with the GPL, even if it includes
raising legal charges.

  Apart from his technical work, Harald is participating in a number of
non-for-profit organizations such as the CCC[3], FFII[4].

  Mr. Welte is currently living in Berlin, Germany.

[1] http://www.hmw-consulting.de/
[2] http://www.netfilter.org/
[3] http://www.ccc.de/
[4] http://www.ffii.org/