The other answer and comments miss the point.  There are many ways to determine age, gender, and heritage that have nothing to do with stating something like  “I am a black woman who is 55.” Plenty of other info can reveal it. 

**Gender**

- Don’t put any gender specific activism on your resume as volunteering 
- Use a gender neutral short form of your name. “Sam” over “Samantha”
- Try to fill in one year long gaps with something (if you quit to take maternity leave or something). 

**Age**

- Don’t put your graduation dates on your resume. 
- Don’t include all the jobs going back to the beginning. 
- Use a less stuffy and traditional resume and one which has a little bit of colour (not a lot, but perhaps a blue dividing line instead of black). Also use a nice template. 

**Heritage**

- Can’t do much about your last name unless you change it
- Avoid listing languages if they are not relevant to the position. Saying you know Farsi pegs you as Iranian. Urdu as Pakistani. 
- Drop job locations from your resume. 
- Have a native speaker of your location proofread it and add the appropriate local names for things and check for unusual word choices.