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