@rahul286 thanks for your reply.
Edison is now working for us, I contact him at experts page, and he is really professional, also @virtubox give more suggestion, and it is really great here that I can find more professional technical guy. thanks for all here.
Yes, it would be great if there is Sub-forum for "paid jobs", since it is a little hard to find a easy engine, HHVM, Redis, ....and very comprehensive professional technical guy in other place. actually, yes, I have other develop demand, and I will post there.
By the way, thanks for all of your great works, Easyengine, Rtmedia, Nginx helper.....
Have a nice day.
Alex