The developer wants artists for FX, UI and lighting plus a gameplay and online engineer. Sledgehammer is based in California, owned by Acti.
The studio sweetens the pot with talk of a "company sponsored gym pass", a kitchen brimming with snacks, a health and dental plan to deal with all that subsequent snacking, and some 401k action (that's stock money talk to us Europeans).
Check out what posts Sledgehammer. The new studio is working a whole new Call of Duty spin-off, as Infinity Ward and Treyarch already have their projects. Yeah, you will be working with Activision though. They're not so bad... right?