Ruling on working for a Christian who makes fun of Islam
Question

                I am a young man and I work for a company that is owned by a heretic Christian, who makes fun of Islam and hates Muslims. Is it permissible to work for this mushrik in the case of necessity? 

Sometimes I stay away from work to do things I need to do, without his permission, but I record it as if I was present at work, as he has withheld many of my rights from me. Is that permissible? And what does repentance entail?.
Praise be to Allah.
    Firstly: 

    It is 
    permissible to work for a kaafir or mushrik, so long as one does not approve 
    of anything of his disbelief or sins. So it is obligatory to object to him 
    if he makes fun of Islam or Muslims. It is also obligatory to adhere to 
    Islamic guidelines such as not regarding him as a friend, not being the 
    first one to greet, and so on. It is better to work for a Muslim who fears 
    Allah. 

    Shaykh Ibn 
    ‘Uthaymeen (may Allah have mercy on him) was asked: There is someone who 
    works with the kuffaar; what advice can you give him? 

    He replied: We 
    advise this brother who works with the kuffaar to seek work where there are 
    none of the enemies of Allah and His Messenger who follow a religion other 
    than Islam. If this is possible, then this is what he should do. If it is 
    not possible then there is nothing wrong with it, because he is doing his 
    job and they are doing theirs, but that is on condition that there be no 
    fondness or love or feelings of friendship towards them in his heart, and 
    that he adhere to the rulings of Islam concerning greeting them, returning 
    their greetings, and so on. Also, he should not attend their funerals or 
    celebrations, and he should not congratulate them on their festivals.

    End quote from
    Fataawa ash-Shaykh Ibn ‘Uthaymeen, 3/39 

    Secondly: 

    It is not 
    permissible to stay away from work whilst recording it as if one were 
    present, because that is lying. What you have to do is strive to attain your 
    rights in proper, legitimate ways. 

    What you have 
    to do is render back trusts that he has entrusted to you, and fulfil the 
    conditions that he stipulated for you in your work with him. 

    And Allah knows best.