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