Regarding the Islamic ruling on this issue, Dr. Mohamad Naim Mohamad Hany Saei, said that If most of their products are halal products and the haram products are very little or rare, then it should be okay for a Muslim to work for the company. He is, however, advised to calculate the percentage of the haram products, and try to donate that percentage out of his income to purify his rizq inshaAllah.
It should be noted, however, that if he can find another job that is free from this haram contents, that will be far better. The Prophet (peace and blessings be upon him) ordered us to “leave that which is doubtful to that which is not doubtful.” (Bukhari and Musnad AHmad)