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