Job engineer: Sr. Actionscript/video players, SF, CA

I'm seeking perm engineer in SF for the world's largest publisher of social apps that allow people to engage on social networks like Facebook and MySpace.
 
Sr Actionscript/Flash Engineer will be building video and audio players for high traffic internet applications (expertise in Flash/Actionscript 3, CPU/Memory optimization, JavaScript/Flash bridging, Cross-browser compatibility (not a Flash Designer).