When Vijaye Raji came to Facebook in 2011 from Microsoft, he was one of about 15 engineers crammed into a small office near Pike Place. Now Raji is the company’s vice president of games and one of the leaders of Facebook’s Seattle office, which has just expanded into another new building.

RELATED: Facebook opens big new Seattle building, boosting total capacity in the city to nearly 3,000 people

Raji gave GeekWire a tour of Facebook’s new 150,000-square-foot office at 1101 Westlake Ave. N. Tuesday, showing off the space to the outside world for the first time. The company started moving in last month, and eventually 900 people will call the office home.

Raji tells GeekWire that the first teams to move into the new office work on the infrastructure that powers Facebook. Teams that work together often will likely move into the same areas, and some of the teams working out of Facebook’s Seattle offices include Games, Messenger, Marketplace and more.

“The Seattle offices have come a long way,” Raji said. “One of the good things about having 2,000 people is you can have critical mass talent here, so we can start projects entirely from Seattle. We also build foundational technology.”

For more on Facebook’s Seattle presence and our tour of the new office, check out the video above.

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