Hi Mary,
Apply for the job normally; you do not have to advertise your religion or volunteer any info about your religious affliations. Should your family name sound very Jewish, then it is possible some miscreants will pick on it but I don't see a major problem. However do not advertise your sympathies with the Zionist regime, you may bring upon yourself more than you can chew.
Having said that, if you are not fanatical about your practices like strictly observing your Sabbath and refusing to fly then there is no obstacle for you to fit in as a crew member. Good Luck...Shalom & Wassalam.