Fintech Leaders Nubank’s Co-Founder on Winning 140M Customers & Expanding to the US
Oct 13, 2026
Cristina Junqueira, Nubank co-founder and CEO of its U.S. operation, discusses taking a São Paulo startup to 140 million customers. She explores Nubank’s U.S. launch, product-led growth, customer love over paid acquisition, AI-powered underwriting, and the surprising inefficiencies of American banking. She also shares lessons on talent, leadership, and protecting focus with a zero-based calendar.
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A Preferred Customer Still Couldn’t Get A Card
- Cristina Junqueira expected U.S. banking to be familiar but found bureaucracy, fees, and fragmented processes unexpectedly severe.
- Even with savings, a mortgage, and private-banking relationships, she waited months for a credit card.
Nubank Targets America’s Underserved Mass Affluent
- Nubank targets the U.S. mass-affluent segment, which has income and savings but lacks premium benefits and affordable banking.
- Its technology and lean cost structure convert efficiency into no-fee products and better returns.
Make Product Love Your Marketing Engine
- Build a product customers love before spending heavily on acquisition; enthusiasm generates stronger word of mouth than paid conversion campaigns.
- Treat support, social media, partnerships, and storytelling as compounding parts of the product experience.
