ANSWER:

This is absolutely prohibited & one of the major sins in Islam and the income is haram as this is collaborating and assisting in evil and haram.

An individual offers his services to a conventional bank, such as fixing their cameras and equipments they work with or those that improve the confort of their customers. Or any service that benefits the bank. Is that halal or haram?

Halal/Haram Matters, Jobs, Riba |