Sofia Karionova

Chief of Staff, Venture

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Sofia joined SignalFire in 2021 as Chief of Staff to the CEO. She focuses on investment due diligence across venture and growth-stage opportunities as well as portfolio support and operations.

Prior to SignalFire, Sofia was an investor at Vector Capital, a technology private equity firm. At Vector, she focused on software companies, including SaaS, infrastructure, and consumer tech. Previously, she was an investment banking analyst at Bank of America, where she executed a variety of transactions in financial technology and specialty finance.

Sofia’s obsession with technology began at a young age, as she was one of the first in her town to gain access to a computer from her father’s hardware store in Russia. Sofia immigrated to the United States in 2012 and graduated from Brown University with a B.S. in Applied Math and Economics.

In her free time, Sofia enjoys hiking, practicing pilates, playing tennis and volunteering with female-led investing organizations. You can often find her in Sonoma, enjoying her parent’s Russian cooking and playing with their two chihuahuas.

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