Since FIS Global is a financial services company that primarily serves financial institutions, especially banks, I am concerned about whether working there would be considered Halal or Haram. I am confused because, on one hand, their business revolves around facilitating monetary transactions for banks, but on the other hand, the company itself is not a bank.
Additionally, I would appreciate insights on the permissibility of similar roles at other companies like Visa, Mastercard, and American Express, which also deal with payments and financial services. Thank you!