CFO Stories: John McAdoo, CFO of Wayfler

John McAdoo is currently the CFO of digital lending platform, Wayflyer. He kickstarted his career at Arthur Andersen in audit before moving into, what was then, the 8th largest company in the world, Novatis (formerly Ciba-Geigy). Following a successful eight years, and with deep knowledge about how a business with such a large market cap operated, John made the decision to join Arm in Cambridge, UK, effectively launching what would become a 20 year stint in Silicon Valley.

Today, John has scaled multiple VC-backed and public companies through capital-intensive growth, surpassing the $100M ARR threshold during this career. He's helped raise over $500m in equity and debt financing, led acquisitions and executed turnaround projects. Now based in Dublin, John has some strong views on how the mindset in Silicon Valley differs from Europe, and what aspiring CFOs could learn from its straight-talking culture and celebration of failure.

In this conversation, John shares how CFOs can become be strategic enablers, creating value, partnering deeply with the business, and helping shape long-term strategy. It’s about understanding what truly drives the business forward — not just monitoring metrics, but ensuring those metrics reflect real value creation. Whether it's setting realistic benchmarks, managing expectations at the board level, or building relationships with founders, John believes the best CFOs are those who see themselves as growth partners.

Key Topics Covered:

• The strategic evolution of the CFO from costing to growth driver
• The importance of long-term planning, including three-year and five-year roadmaps
• How CFOs can leverage relationships with CEOs and boards for maximum impact
• The cultural differences between Silicon Valley and Europe regarding failure and risk
• Building strong finance functions that enable scaling and innovation
• How to approach technology investments and ROI in engineering and product teams
• The significance of the founder-CEO relationship and mutual trust
• Advice for aspiring CFOs: clarity of purpose and choosing the right leadership partners

Timestamps:

• 00:00 - Introduction: John's move to Wayflyer in Dublin and reflections on his career
• 01:36 - Early inspirations and the journey into finance
• 03:10 - The role of mentorship and early career experiences at Arthur Anderson
• 05:15 - Joining Arm and witnessing its transformation into a tech giant
• 06:47 - Evolving the finance function at Arm and implementing strategic systems
• 09:28 - The strategic role of finance in high-growth companies
• 11:54 - His experience of being a CFO in Silicon Valley and what that taught him about failure
• 14:32 - Balancing innovation with financial accountability in tech companies
• 19:26 - The critical CFO-CEO relationship and its impact on company success
• 25:32 - Reflections on Silicon Valley's unique approach to success and failure
• 32:02 - Challenges and strategies in scaling companies from $25 to $100 million ARR
• 34:18 - Advice for aspiring CFOs: Know your goals and choose your partners wisely

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