Mark Sierra is a Fractional CFO who specializes in scaling AI and SaaS startups from Seed to Series B stages. His career includes leading finance for Metas Reality Labs (Oculus VR) and investment banking. He is a graduate of the University of Southern Californias Marshall School of Business.
Outside of his professional work, Mark is dedicated to community service and youth mentorship. He actively volunteers his time with the Big Brothers Big Sisters of America organization, demonstrating a clear passion for giving back.
He previously managed the finance operations for Metas multi-billion dollar Reality Labs division, overseeing the strategy for Oculus VR.
Mark Sierra
Fractional CFO at WitnessAI
Mountain View, California, United States
Overview
Topics They Care About
AI & SaaS Scaling
His professional focus is on guiding AI and SaaS companies through the critical growth phases between Seed and Series B funding rounds.
Tech Finance Strategy
His background in investment banking and as Head of Finance for Meta's Reality Labs highlights his expertise in high-level financial strategy for major tech ventures.
VR/AR Industry
Having led finance for Oculus VR, he possesses deep insight into the business and financial models of the virtual and augmented reality markets.
Media Appearances
Mark has no verified media appearances
Work History
Fractional CFO at WitnessAI
Education
Mark has no verified education history
More Information
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Location : Mountain View, California, United States
Job Level : Leadership
Designation : Fractional CFO at WitnessAI
