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