Twitter is continuing to hire at its European headquarters in Dublin, with 12 new positions posted to its jobs site earlier today. This brings to 15 the total number of positions currently being sought to "help build Twitter's newest office".
eSpatial, an Irish company that provides GIS (Geographical Information Systems), and online mapping and analysis services is hiring ten new positions for their headquarters in Dublin.
Zynga, probably the best known social network games developer, is again hiring positions for its European headquarters in Dublin. The positions are mostly international customer care agents, but there is also a recruiter and reporting analyst required.