Pros
FNIS is a large company with good technology and many sales opportunities with some of the largest banks and financial institutions. If you have good technical skills or can acquire them on your own, you'll be in demand for many projects where you can exercise technical and professional leadership. Sadly, real career growth opportunities are limited, but FNIS experience can be valuable for gaining a better position in another company.
Kontras
Even though FNIS is a large company, opportunities for career growth and development are pretty limited. The push to move work offshore (to India) seems to have slowed somewhat, but most groups within the U.S. seem to be slowly shrinking, with few open positions and few opportunities for promotions or movement from one group to another. Benefits are probably slightly below average for a company this size. Pay increases are typically limited to 3-4% annually and no increases were given in 2008. Work/life balance is generally poor - it's common for projects to assume employees will be working evenings and weekends.