All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
It should be noted that the scholars held that it is forbidden for a Muslim to work as a hired person – whether a bodyguard or anything else – for a non-Muslim if it involves humiliation of the Muslim. Allaah says (what means): {…and never will Allaah give the disbelievers over the believers a way [to overcome them].} [Quran 4:141]
Moreover, Huthayfah narrated that the Prophet said: “A Muslim should not humiliate himself.” [Ahmad, At-Tirmithi and Ibn Maajah]
For more benefit, please refer to Fatwa 81686.
Allaah Knows best.