You must include resume dates to show the details of your experience. But— Dont worry that resume dates will give away your age or make you look overqualified (or underqualified). Add dates on resumes for jobs, education, internships, certifications, and memberships.

How can I hide my age?

The 10 Geekiest Ways to Hide Your AgeTell the truth in a geeky invented language. Tell people the chemical element whose atomic number corresponds to your age. Invoke your right as a geek to stop incrementing your age once you hit 42. Tell people your correct age More items •25 Feb 2010