Seoul Global Center foreign worker job change labor office foreign workers Korea labor office communication Korea LinkedIn Korea E-7 visa Korea quitting job Korea foreigner unpaid wages foreigner Korea foreign employment law korea resigning job korea unpaid salary Korea foreigner freelance jobs Korea foreigner jobs Seoul foreign worker reporting delay Korea workplace change Korea visa reporting timing Korea Korean labor law foreigners Saramin job change visa korea process foreign worker korea immigration reporting steps employer shutdown foreign worker Korea Korea job search guide employer no response Korea foreign worker unsafe work Korea retirement pay Korea work in South Korea 2025 foreign worker side job korea visa reporting deadline Korea fired in Korea visa foreign worker visa korea rules job change korea immigration work compliance foreign worker resignation labor office Korea visa violation part time korea Korea job platforms JobKorea severance pay Korea part-time jobs Korea XpatJobs job change Korea teaching jobs Korea work visa korea unpaid severance Korea visa sponsorship Korea workplace change reporting Korea foreign worker unpaid wages Korea work visa status korea employment visa foreign worker severance Korea non-teaching jobs Korea work visa korea rules labor rights foreigners Korea salary not paid Korea notice period korea foreign worker mistakes Korea foreign worker ghosted Korea Kowork foreign worker job change korea company closed Korea visa English jobs Korea expat career Korea foreign worker Korea KOTRA job fair job termination Korea foreigner e7 visa job change korea jobs in Korea for foreigners change job korea visa