In case you arent- never use an electric razor on your balls without a guard. And even then, I don’t try to get it too close to the skin, just to shorten the hairs a lot.
Then if I want to go further, shaving cream and a safety razor is the way to go. Just try to smooth out the scrotum with your other hand to make it as flat a surface as possible.
Eh fuck it, what are they going to do, call the FBI on me? Employer certainly doesn’t care.