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