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