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