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