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