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