I have been with the company over 5 years and I am very happy in my role. I joined straight from school and I started specializing in SAP. I made manager in about five years and I hope to stay in consulting for next 3 years.
The mood is good and the company is doing really well - there are some concerns about what the future brings for Capgemini as more things are moved to the Cloud and there will be less consulting required just due to the nature of cloud work.
With this being said, I am not anticipating any Capgemini layoffs in 2017 (at lease Q1 and Q2 2017) but you never know as things can turn around in IT very quickly.