Oriona is the Chief of Staff for Microsoft’s Chief Operating Officer, overseeing strategic planning, internal communications, and ensuring the leadership team’s effectiveness by prioritizing initiatives, leading rhythm of business, and driving cross-functional collaboration.

Previously, Oriona was the Chief Operating Officer for M12, Microsoft’s Venture Fund, where she led fund operations, including portfolio development, marketing, communications, and strategy. She has been with Microsoft for 17 years in various roles, overseeing organizational strategy, operations, and communications, and managing several international partnerships and market expansions.

Oriona joined as an antitrust attorney after working at the law firm Skadden Arps, specializing in antitrust for M&A.

In Microsoft’s legal department, she partnered closely with engineering units like Windows, Office, Internet Explorer, and Xbox, and represented Microsoft in front of regulatory bodies such as the Department of Justice, the Attorney General Offices of New York and California, and the European Commission.

Her diverse experiences include running communications for the former Chief Operating Officer of Microsoft, working for the Chairman of Emerging Markets on market expansion and government growth partnerships, leading the Cloud for Global Good campaign in Global Government Affairs, and supporting the strategy for Microsoft’s small, medium, and corporate segments.

These roles have allowed her to work closely with Microsoft’s field teams around the world and engage with some of Microsoft’s largest and smallest customers.

Oriona holds a JD and an MA in economics from the University of Iowa, where she graduated with distinction, and a BA in economics and international relations from the University of California, Davis.

She resides in the Seattle area with her husband and two children and enjoys wake-surfing, skiing, and watching her kids play basketball.