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