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