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