How do I deal with an abusive deputy manager while adhering to Islamic principles and without offending him, especially since he is older than me?

The questioner is advised to ensure the permissibility of her work and to adhere to Islamic guidelines when dealing with men. She is also advised to consistently ask Allah for protection and to recite the supplication for leaving the home. It is permissible to negotiate with the deputy director when mistreated, using a method that does not violate Islamic law, and to demand good treatment without reproach or blame. If the mistreatment continues, the matter can be escalated to the responsible authorities.