Pros: Abundance of knowledge resources, professional and career mentorship, scope for making a great impact on the world, opportunities to switch to several different roles and products within the company, great working conditions, and an amazing place to live (Seattle area).

Cons: Lack of vision for the company at the highest levels of management, bureaucracy, not being agile with respect to competition from smaller companies, and getting isolated into highly-specialized silos of work.

Pros: Good name recognition in your resume. Get an idea of the scale of work in a big company. If you are a manager, it's a cushy ride. If you are an employee, it's very difficult for a developer due to constant deadlines and demands. OK for program managers and testers.

Cons: Too much process and bureaucracy. Constant change in direction is normal. It's common to reset the project direction every few months and start from scratch. Stack ranking (where employees are compared to each other in their level every few months and forced into a curve distribution) is brutal. If you are a developer here, you don't feel like you are competing with other companies to deliver a better product; instead, you are competing with your coworkers. Coworkers will not help each other; instead, they will backstab each other so that they finish higher in the curve. It is a bit easier if you are a program manager because you don't have any real deadlines. Developers have a deadline almost daily and put in crazy hours in most teams. It's also easier if you are a lead, since you typically would delegate all work to reports, get credit for all successes, but are typically not blamed for project failures. Managers have to fill up slots between 1 to 5 (performance grade) in their team by force. This is called stack ranking and is very political. About two months of the year, managers just spend time doing that. Typically, they pick the least favorite employees for 4 or 5. And by HR rule, they have to constantly tell them they are underperforming so that those employees leave soon. Also, internal transfers are only possible for people who get a 1 or 2 rating. The other employees are ignored during internal applications. There are also many ethnic cabals inside there. There is also an official internal effort to force out older employees and replace them with younger employees. For managers, though, there is no such effort. Managers are treated as gods by the company.

Pros: A huge amount of projects are happening in parallel. If you are curious, you can learn a new field every day.

Cons: Unsustainable culture not valuing, too much politics.