Pros
Fluor is a very large and diverse organization. There are opportunities to move around, not only different locations but also withing the company. Changing departments and finding your spot in Fluor in easily available. Paid Overtime is always a nice perk that is often time not available else where. Knowledge sharing is strongly encouraged among everyone, so learning and gaining experience occurs rapidly. Fluor has a very good benefits package for families and retirement.
Cons
One of the drawbacks of a large company is that it can be overwhelming or you can get lost in the mix. Sometimes it can be hard to separate yourself as a strong worker in a group because there are so many others. Tight deadlines on projects can be stressful. Fluor is predominantly in a cyclical industry in the oil & gas sector (though they are more diverse now than in the past, but still mostly refining), so when times are good, everyone is happy. But when times are bad, layoffs happen quickly.