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