I've been on Wikipedia since October 2004. I am native from Germany and have been living in Portugal for years, which gives a natural field of activity. You can find me under the same name in the Portuguese and German Wikipedias, where I try to complete information on topics related to Germany and Portugal in the opposite language editions. Very few contributions in the English Wikipedia.
Otherwise, I am a scientist with a strong impact in the IT area, but I am not active in Wikipedia in this field.