early unofficial job offer; informal promise of employment
Refers to a preliminary, non-binding job offer given before the official 内定 (naitei), typically during the recruitment process. Common in Japanese job-hunting context.
See also: 内定
He received an early unofficial job offer from a major company.
内々定を辞退する場合は早めに連絡したほうがいい。
If you decline an informal job offer, it's better to contact them early.