I'm in the process of doing this now! I want a university job in or near Seoul, but since I'm currently living in the US, I need to get back over there to be considered. Solution: teaching at an adult hagwon for a year or two, then applying for university jobs after that, while I'm already in Seoul. By then I'll have the 2 years experience on top of my Masters (in English Education!) and will be their ideal candidate. I'll let you know how it goes!