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