This week, Spruce Media is hiring an agency account manager for Facebook ads, while Machine Zone has several openings in its Palo Alto, Calif. office. The company needs a senior operations engineer, a build/release engineer, C/C++ game developer and a scalability engineer. Get more info on these jobs below, and find addition just-posted gigs on mediabistro.com.

Agency Account Manager (Facebook Ads) Spruce Media (Palo Alto, California)
Senior Operations Engineer Machine Zone (Palo Alto)
Build/Release Engineer Machine Zone (Palo Alto)
C/C++ Game Developer Machine Zone (Palo Alto)
Scalability Engineer Machine Zone (Palo Alto)

For more job listings, go to the Mediabistro job board, and to post a job, visit our employer page. For real-time openings and employment news, follow @MBJobPost.