JobKorea expat career Korea labor office foreign workers Korea company closed Korea visa work visa korea Seoul Global Center foreign worker ghosted Korea freelance jobs Korea foreign worker side job korea foreigner jobs Seoul Saramin employer shutdown foreign worker Korea teaching jobs Korea fired in Korea visa visa reporting timing Korea workplace change reporting Korea foreign worker part-time jobs Korea job termination Korea foreigner labor rights foreigners Korea change job korea visa visa violation part time korea e7 visa job change korea visa sponsorship Korea unpaid salary Korea foreigner quitting job Korea foreigner LinkedIn Korea work visa status foreign employment law korea work visa korea rules foreign worker job change foreign worker mistakes Korea employer no response Korea Korea job search guide XpatJobs visa reporting deadline Korea foreign worker job change korea foreign worker unsafe work Korea labor office communication Korea jobs in Korea for foreigners KOTRA job fair English jobs Korea Korea job platforms foreign worker reporting delay Korea notice period korea unpaid wages foreigner Korea non-teaching jobs Korea foreign worker resignation job change visa korea process foreign worker korea immigration reporting steps Kowork foreign worker visa korea rules job change korea immigration work compliance korea employment visa resigning job korea work in South Korea 2025