Qwiki is hiring full time engineers in SF: 
<a href="http://www.qwiki.com/work-here" >http://www.qwiki.com/work-here</a>
Web(Ruby on Rails/jQuery/Backbone.js)
Backend(Scala/Hadoop)
DevOps
Android
Contact me direct t at qwiki.com
Ask HN: Who is Hiring? (June 2011)