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