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