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