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