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