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