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