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