It would be funny to be anonymous on a freelancing site like Upwork, and pick some nickname that hints that he's part of some discriminated group, like RebeccaH

It would be funny to be anonymous on a freelancing site like Upwork, and pick some nickname that hints that he's part of some discriminated group, like RebeccaHarris or RainMan. Then in interviews, just hint that he didn't want to get discriminated for his 40 years of experience.