That would include everything from your relevant skills and educational coursework to specific accomplishments you've achieved in prior jobs that are at least somewhat relevant to the job you're seeking. (zipjob.com)
The description of your current role should be written in the present tense while the responsibilities you held at prior jobs should be written in the past tense. (theladders.com)
When describing prior job experience or relevant skills on your resume, it is important to use statements that fully support your job objective. (the-arnold-group.com)