The Berlin University has jobs to offer in its "1914-1918 Online. International Encyclopedia of the First World War" project, which aims at compiling the first international encyclopedia on the topic. Formal qualification, excellent English and German are required.
http://www.firstworldwarstudies.org/?p=755
More on the project (in German) here:
http://www.geschkult.fu-berlin.de/e/fmi/arbeitsbereiche/ab_janz/projekte/Projekt_1914-1918 Online (important: add "-" between "1918" and "Online/" or the page won't show)