San Francisco, CA (SOMA) - Booyah!
We're a mobile games company that focuses on using real-world elements (e.g. location) as part of our entertainment experiences.  We're primarily focused on iOS development right now, but we have a lot of cross-platform (Android, Flash, Mac, PC, etc.) experience in-house as well.
We're the game studio that brought you MyTown, Early Bird, DJ Rivals, and Nightclub City.
We're current looking for gameplay engineers (<a href="http://www.booyah.com/jobs/?id=41" >http://www.booyah.com/jobs/?id=41</a>) and a senior systems engineer (<a href="http://www.booyah.com/jobs/?id=37" >http://www.booyah.com/jobs/?id=37</a>).
We're a Mac shop.  Our code lives in git.  Jenkins keeps us honest.  Engineers use whatever other tools they prefer.
We also have business, project management, and art openings: <a href="http://www.booyah.com/jobs/" >http://www.booyah.com/jobs/</a>
Ask HN: Who is Hiring? (October 2011)