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