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