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