Good pick on paper, but you can probably find better - Controller Sanofi Employee Review

In controlling, things are pretty straightforward: once you reach Senior level (around three years of experience), that’s usually as far as you’ll go. There aren’t real career paths, and the few management positions tend to go to people through nepotism. Local offices aren’t interested by you either. The glass ceiling is huge. If you’re hoping for opportunities abroad, don’t count on it: it’s the same story of favoritism. Skills and experience don’t matter as much as knowing the right people. And if you do make it to manager, your hourly rate actually ends up lower than senior controllers.