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