The pay was subpar to someone with my experience, promotions was a joke as my replacement was hired at the same level as I was after providing many years of service which was always rated above expectations under an extreme workload. Eventually this burned me out and I had to part ways.
Not all positions are treated the same (middle management and above are treated so much better financially), so I would advise to proceed with caution. My mistake was providing too many years of service and loyalty to a company which, in my opinion, showed no loyalty back in the form of decent pay increases and meaningful promotions for the hard work I provided (but I did receive my fair share of ‘thank you’).
My advice, if you choose to work with FIS, is to learn all you can within 2-3 years and then move on, whether it be internally or with a different company.