Emeryville, CA (first Bart stop from SF across the Bay)
Location Labs
<a href="http://www.locationlabs.com/news/jobs/" >http://www.locationlabs.com/news/jobs/</a>
Location-based mobile consumer and safety services.  Shipping on over 100m devices in the US.  Opportunities range from mobile development (iOS, Android, Blackberry), backend (Python, Ruby, Java), and frontend web devs.  Other opps include Product Management, QA, and Build/Release engineers.