noun
reemployment; returning to work
Refers to finding a new job after leaving a previous one, often after a period of unemployment or career break.
彼は長い失業期間の後、再就職を果たした。
He succeeded in finding reemployment after a long period of unemployment.
再就職支援プログラムに参加する。
I participate in a reemployment support program.
転職 means 'changing jobs' or 'career change', often implying moving from one job to another, while 再就職 emphasizes returning to work after a gap.
Compound of 再 (さい, 'again') and 就職 (しゅうしょく, 'finding employment').