I'm currently in China where is the Chinese's migration department for foreign visa applicant?

Hi, I'm currently in China Beijing, Was invited to visit Qingdao Qindao University for job interview and got offered for teaching. Qindao college an intern told me I must be back in Australia to apply for visa? I came all the way to China for interview and for working visa applicant i must stay at home cos of China's visa requirement that i must receive invitation and work contract at my home resident? umm..... i wasn't sure if she knew very well.. so i wanna ask is there another way to or can i get it done in Beijing?