Saramin English jobs Korea labor office communication Korea foreign worker reporting delay Korea XpatJobs employer shutdown foreign worker Korea foreign worker job change teaching jobs Korea job change visa korea process foreign worker korea immigration reporting steps JobKorea expat career Korea resigning job korea visa reporting deadline Korea non-teaching jobs Korea foreign worker ghosted Korea visa reporting timing Korea company closed Korea visa Kowork work visa korea foreign worker unsafe work Korea work in South Korea 2025 visa violation part time korea foreigner jobs Seoul notice period korea workplace change reporting Korea foreign worker foreign worker side job korea KOTRA job fair quitting job Korea foreigner visa sponsorship Korea job termination Korea foreigner work visa status jobs in Korea for foreigners foreign worker job change korea work visa korea rules freelance jobs Korea part-time jobs Korea LinkedIn Korea Seoul Global Center foreign worker mistakes Korea employer no response Korea change job korea visa Korea job search guide foreign worker visa korea rules job change korea immigration work compliance labor office foreign workers Korea labor rights foreigners Korea e7 visa job change korea fired in Korea visa unpaid wages foreigner Korea unpaid salary Korea foreigner korea employment visa foreign employment law korea Korea job platforms foreign worker resignation