Working at Google has a stiff learning curve, and it can be challenging to ramp up and get your footing here -- especially if you have been doing software development 10+ years elsewhere and are accustomed to being a big fish. In you aren't on a very short list of luminaries (e.g. a Vint Cerf), then respect and influence have to be re-earned from scratch based on what you do at the company. Your past merits may have helped you get in the door, but inside they buy you nothing. So, to thrive here you have to grow and sustain some inspiration about what's possible, to keep your head above the daily grind of routine work.
Working at Google can isolate you from the global technology community, as well as sometimes from our users. We have our own technology stack and internal lingo, so systems and methods learned here aren't always transferable. We exist in an extreme media spotlight, in highly competitive markets, dealing with sensitive information, so we are very cautious about sharing anything externally. The culture tends to be inward facing: everything is on campus (the Googleplex) -- meals, entertainment, perk, education, tech talks -- so why engage outside of the bubble? Our approach is to solve everything with automation so that the system works on a global scale, but human-to-human customer service does not "scale", and so is sometimes given short shrift.