Is an employee required to give his/her employer two weeks notice when quitting a job? July 28, 2021 20:11 No. Missouri follows the "Employment-At-Will" Doctrine, which does not require any notice. State laws provide no requirement for notice from or for employers. Related articles Is my employer required to pay me for unused vacation if I lose my job or quit? If an employee quits his job, when are the final wages due to him? Can my employer fire me for missing work even if I have a doctor′s excuse? Are breaks or lunch periods required? Can I file for unemployment if I am still working part-time or working for another employer but laid off of one job?