San Francisco, CA (SOMA)
Klout (<a href="http://www.klout.com" >http://www.klout.com</a>) is looking for engineers, and lots of them.  
<a href="http://klout.com/corp/careers" >http://klout.com/corp/careers</a>
We have lots of data and are growing wildly.  Great perks in the office, fun people, and lots of opportunities.
Klout consists of a team of scientists, engineers, thinkers and dreamers banded together to create a standard where one had never been before. We believe that every person who creates content has influence and our mission is to help individuals understand and leverage their influence.
tyler at klout dot com if you'd like to talk more
Ask HN: Who is Hiring? (October 2011)