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.