Oleg Antonyuk
Chief Financial Officer @PlexTrac
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WORK HISTORY
Chief Financial Officer @PlexTrac
Appointed CFO to lead PlexTrac’s financial strategy and operations through its next phase of growth. Oversee all finance-related functions, including FP & A, accounting, tax, legal, and investor relations, within a high-growth cybersecurity SaaS environment.Serve as a key advisor to the CEO and board, driving capital strategy, financial planning, and long-term business modeling.Manage legal and corporate governance matters in partnership with external counsel, ensuring compliance and risk mitigation.Lead financial reporting, scenario modeling, and operational planning to support strategic initiatives, including potential M&A.Maintain audit readiness and continued operational excellence, building on a foundation of clean annual financial audits.Oversee internal systems and controls, continuously improving processes to scale with company growth.Mentor and lead the finance, legal, and analytics teams to enhance cross-functional collaboration and data-driven decision-making.Partner cross-functionally to align financial strategy with GTM, product, and people operations.
EDUCATION
UW Foster School of Business
Bachelor of Arts in Business Administration, Accounting
ABOUT OLEG ANTONYUK
Experienced CFO with a track record of driving scale, capital efficiency, and strategic clarity across both venture-backed and private equity–backed companies. I specialize in leading finance and operations for high-growth businesses—building the infrastructure, teams, and processes that support sustained performance and long-term value creation.I\'ve helped companies scale from early-stage to over $100M in ARR, and have led major strategic transactions valued in the hundreds of millions, including M&A, growth equity, and secondary recapitalizations. Beyond finance, I’ve overseen HR, legal, sales operations, revenue operations, and broader G&A, ensuring alignment across teams and accountability across the organization.I bring a disciplined, data-driven approach to forecasting, investor relations, and cross-functional execution—always aligning finance closely with product, GTM, and board-level strategy. Whether preparing a company for its next round, optimizing capital deployment, or driving operational maturity post-investment, I operate as a strategic thought partner to the CEO and a steady hand through moments of inflection.
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