From the google job page

http://www.google.com/intl/en/jobs/engineering/

Google is looking for engineers with great aspirations. We need more engineers like Arvind Jain, who left the successful company he’d help co-found, just so he could work on creating cutting-edge products that are used and enjoyed by millions of people. Or like Deepa Iyer, who, after getting her master’s degree in computer science from Rutgers University, joined Google to help design, prototype, implement and launch new products around the world.