Here are my thoughts. It depends on what you're willing to risk and what you think is worth it. I am a public school teacher in the bible belt. Here is what I do: I live my life as a satanist. Being a satanist doesn't mean you have to constantly scream to the world that you are one. Just as you wouldn't constantly scream to the world that you're gay. When it comes to the job, if asked my belief system, I tell. I try my best to keep my NON SERVIAM arm tattoo covered to the best of my ability - kids asking "what does that mean," just seems to open a can of worms. I always wear my pendants on the inside of my shirt. Plus I don't always wear them anyway. The jewelry I wear doesn't make me more of a satanist than the next guy or gal.
Other than some minor things, I don't care who knows I am a satanist. If they were to discriminate me based on religious beliefs, I'd take them to court. Church and state should be separate always and lucky for me, I live in a liberal af county and city. And plus the school system touts diversity and inclusion of all, so I am never worried one bit.
Question though - what kind of job do you have that makes you feel you have to hide the essence of who you supposedly are!? Is this even a job worth subjecting yourself to?