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