Comment by drillsteps5

Your application and resume will go through multiple systems and viewed and assessed by 3 to 5 people before anybody can even see your (presumably younger) face.

In the resume, you can remove your experience prior to certain date (which is recommended anyways as it makes your resume shorter and very few employers care what you did 15 years ago), but you do have to list your education and most ATS systems require graduation dates.

Even if you do manage to omit the dates, if you were senior developer or architect in the very the first position from 12 years ago that you have on your resume, the recruiter/hiring manager will be able to put 2 and 2 together.

All the advice I've heard from the career/job search/whatever coaches/advisors was to not try to hide your age but use it your advantage. Trying to hide your age doesn't just make you looking silly, it might create an impression that you're hiding something more serious.

But yeah, looking younger and healthier definitely doesn't hurt, not just in job search but in life in general.