A complete job history section on your resume should bear the name of the company or security outfit and the position you occupied, the period you worked with the company, and the duties you performed. (jobdescriptionandresumeexamples.com)
Before you gain professional experience, it's okay to add other work experience to your job history section. (uptowork.com)
You've probably heard that it's best to keep resumes short, and while it's true that you should aim to keep your document length at one page, it's important to provide at least five bullet points in each job history section. (resumebuilder.org)