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Mayor Adrian M. Fenty has again raided the private sector for an agency head: Bryan D. Sivak, 34, is his new chief technology officer.

Sivak replaces interim CTO Chris Willey, who in turn replaced Vivek Kundra, who exited the Fenty administration for a top federal job in the Office of Management and Budget.

Like transportation director Gabe Klein, Sivak is coming from well outside the governmental sphere. He is a founder of software firm InQuira—-an Silicon Valley outfit that has done projects for the like of Nokia, T-Mobile, and the British Ministry of Defense. This will be Sivak’s first stint living in the District.

“I’m more of an innovator than anything else,” he said at a One Judiciary Square press conference this morning.