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