The Fintech Blueprint

How Marqeta Built the $400B Modern Card Issuing Platform, with CEO Mike Milotich 25.05.2026 44min

In this episode, Lex chats with Mike Milotich — Chief Executive Officer of Marqeta, the modern card issuing platform that processed nearly $400 billion in payments volume in 2025, and is certified to operate in 40+ countries, growing over 30% for the third straight year. They discuss how Marqeta's separation of bank, processor, and brand armed fintech's largest winners across buy now pay later, on-demand delivery, neo-banking, and expense management with the Lego blocks to build their own card programs. Mike explains how the company's growth is shifting from enabling new use cases to displacing volume on legacy bank platforms, and they explore why card issuing is going multinational, what the agentic commerce wave actually requires to clear security and behavioural hurdles, and how Marqeta's continued growth runs through embedded finance, real-time personalisation, and the forced modernisation of the banks themselves.

The $6B Decentralized AI Network, with Yuma CRO Evan Malanga 15.05.2026 36min

In this episode, Lex chats with Evan Malanga — Chief Revenue Officer of Yuma, a subsidiary of Digital Currency Group focused on growing the Bittensor ecosystem. They discuss how Bittensor's $6 billion protocol incentivises AI builders worldwide through token emissions across 128 competing subnets, and why the network has produced real commercial outputs — including a 72 billion parameter model trained on-chain and a coding agent rivalling Claude at a fraction of the cost. Evan explains Yuma's role as the institutional gateway to Bittensor through its validator, accelerator, and asset management products, and they explore why the concentration of AI in OpenAI and Anthropic is a systemic risk, and whether Bittensor's future extends beyond AI into a broader coordination engine for decentralised work.

Inside Mercury's $650M Revenue Machine, with CEO Immad Akhund 27.04.2026 44min

In this episode, Lex chats with Immad Akhund, CEO and founder of Mercury, a leading neobank for businesses. Immad shares his entrepreneurial journey, explaining how frustrating banking experiences inspired Mercury's creation. They discuss Banking as a Service, open banking, embedded finance, and core banking systems. Immad details Mercury's product philosophy, team structure, and migration away from Synapse before its collapse. He also outlines Mercury's impressive growth, with 300,000 customers, $650M in annual revenue, and three years of profitability. The conversation concludes with Mercury's future plans, including lending expansion, a bank charter application, and hopes for smarter AI-driven regulatory compliance.

How Polygon Became the Payments Chain Moving $2.3T in Stablecoins, with CEO Marc Boiron 30.03.2026 49min

In this episode, Lex chats with Marc Boiron — CEO of Polygon Labs. Marc shares his journey from law to blockchain, discussing the challenges of navigating crypto’s evolving legal landscape and the complexities of structuring compliant DeFi projects. He explains Polygon’s strategic pivot to focus on stablecoin payments, leveraging its proven blockchain and global partnerships. Marc highlights Polygon’s real-world adoption, competitive edge, and vision to become the leading platform for on-chain payments. The episode offers insights into regulatory hurdles, industry trends, and Polygon’s mission to transform digital money movement.

Building Privacy Infrastructure for 35+ Global Financial Institutions, with Matter Labs CEO Alex Gluchowski 13.03.2026 40min

In this episode, Lex chats with Alex Gluchowski — Cofounder and CEO of Matter Labs, about the transformative impact of zero-knowledge proofs (ZK proofs) on blockchain scalability and privacy. They discuss Matter Labs’ evolution, the development of zkSync, and how ZK proofs enable secure, private, and efficient blockchain transactions. The conversation explores enterprise adoption, regulatory shifts, and the potential for blockchain to revolutionize global finance by enabling privacy-preserving, interoperable networks anchored to Ethereum, ultimately highlighting the growing role of cryptography in advancing financial sovereignty and innovation.

How Alpaca built the API brokerage for 300+ global fintechs across 45 Countries, with CEO Yoshi Yokokawa 05.03.2026 46min

In this episode, Lex chats with Yoshi Yokokawa, CEO of Alpaca — a brokerage infrastructure company that provides API-based trading and custody services to fintechs and developers globally. The conversation begins with their shared experience at Lehman Brothers during the 2008 financial crisis, where Yoshi worked in fixed income securitization and learned that even when market participants sense a bubble, they keep dancing because timing the exit is impossible. After Lehman's collapse, Yoshi pursued entrepreneurship, building a computer vision AI company acquired by Kyocera before founding Alpaca in 2017. Initially inspired by Robinhood, Yoshi pivoted after experiencing firsthand the friction of accessing brokerage infrastructure—realizing the deeper opportunity was building API-first brokerage rails for developers. Today Alpaca powers 9 million accounts through 300+ partners across 45 countries, recently raising $150 million at a unicorn valuation. The discussion explores how Alpaca follows Robinhood's product roadmap to anticipate partner demand, the challenges of adding crypto, and Yoshi's thesis that finance is undergoing a generational shift from digital to on-chain operations. Lex shares examples of legacy infrastructure dysfunction—from faxing PDFs to TD Ameritrade in 2012 to the Synapse collapse caused by manual CSV uploads—illustrating why Alpaca built its own custody and ledger systems as a path to competing in the $350 trillion global securities custody market.

Building the $3B Ethereum Treasury Company, with SharpLink CEO Joseph Chalom 20.02.2026 53min

In this episode, Lex chats to Joseph Chalom, CEO of SharpLink, a Nasdaq-listed leader in digital asset treasury management focused on Ethereum. Joseph shares his journey from BlackRock and the Aladdin platform to pioneering digital asset strategies, including staking and tokenization. The discussion explores the evolution of fintech, the integration of crypto into institutional finance, and the future of decentralized finance (DeFi) and AI-powered financial agents. Joseph highlights SharpLink approach to making Ether productive for investors and the growing institutional adoption of blockchain technologies.

The Quiet Fintech Behind $85 Billion in Transactions, with Payoneer CEO John Caplan 02.02.2026 44min

In this episode, Lex speaks with John Caplan — CEO of Payoneer, a public fintech company driving over $85 billion in annual cross-border payment volume. With roots as a prepaid card provider, Payoneer has evolved into a global financial operating platform serving 2 million entrepreneurs across 190 countries. Caplan shares insights from his entrepreneurial journey—from building OpenSky and scaling it to $50 million in revenue before its acquisition by Alibaba, to now leading Payoneer’s transformation into a full-service banking alternative for global SMBs. We explore how Payoneer is addressing the complex financial needs of international businesses, competing in a dynamic payments landscape, and preparing for a future that includes stablecoins, workforce management, and potentially $1 trillion in annual volume.

Building DeFi's $25B Liquidity Engine, with Curve Founder Michael Egorov 05.01.2026 48min

In this episode, Lex speaks with Michael Egorov - Founder of Curve Finance and YieldBasis. Kicking things off about his journey from experimental physicist to founder of Curve Finance and YieldBasis, highlighting how theoretical physics concepts influenced his creation of financial invariants in DeFi protocols. Curve pioneered fully automated concentrated liquidity for stablecoins and introduced veTokenomics, a governance model rewarding long-term commitment with voting power and protocol fees. Egorov defends veTokenomics against criticisms of unlock-driven volatility, citing that most CRV locks average over 3 years and behave like permanent commitments. YieldBasis expands Curve’s approach by offering impermanent gain strategies to counter impermanent loss in volatile markets like Bitcoin, aiming to scale toward a $50B market ceiling. The discussion closes with reflections on DeFi token market structure challenges and Egorov’s call for protocols to connect token value to real economic flows by activating fee-sharing mechanisms.

Building a Top 5 Global Crypto Exchange with 120M Users, with Bitget CEO Gracy Chen 29.12.2025 43min

In this episode, Lex speaks with Gracy Chen - Bitget’s CEO, who transitioned from a fintech entrepreneur to leading one of the top five global crypto exchanges. Bitget processes $10–20 billion in daily trading volume and serves 120 million users across centralized and decentralized platforms. Its geographic base is mostly in Asia, but it’s expanding into Europe through regulatory compliance and new products like tokenized US stocks, which have already surpassed $20 billion in trading volume. Bitget differentiates through security features, including a $600 million protection fund, and user acquisition via both brand campaigns (e.g. Messi sponsorship) and local affiliate (KOL) marketing. Looking ahead, Bitget aims to move beyond crypto-native assets toward mass adoption, focusing on product-market fit and offering tokenized real-world assets and enterprise services.

From $12.5M ICO to $100B+ in On-Chain Infrastructure, with Gnosis Co-Founder Friederike Ernst 01.12.2025 42min

In this episode, Lex speaks Friederike Ernst, co-founder of Gnosis. Together, they explore the evolution of Gnosis from an Ethereum-based prediction market project into a major infrastructure provider powering over $100 billion in DAO treasuries and $10–15 billion in monthly DEX trading via CowSwap. Tracing the company’s journey from a 2017 ICO raising $12.5 million in ETH (now worth ~$450 million) to spinning out critical tools like Safe, CowSwap, and Zodiac, all originally built for internal use. Despite their success, Gnosis recognizes that the crypto-native user base is limited and has now pivoted to building user-centric, mainstream products like the upcoming Gnosis App targeting Gen Z with real-world financial utility. The company emphasizes its founding mission of democratizing financial ownership and warns against complacency as incumbents like Stripe and Robinhood enter the space. Lastly, Gnosis sees a near-term opportunity in AI-agent driven commerce, especially through reverse advertising models that could unlock trillion-dollar markets.

Building the $500MM+ Binance-based Digital Asset Treasury, with BNB Network CEO David Namdar 12.11.2025 45min

In this episode, Lex speaks with David Namdar - CEO of the BNB Network Company, kicking off with his journey from early Bitcoin adoption in 2012 to co-founding Galaxy Digital and now leading the BNB Network Company. Namdar explains the evolution of public markets’ engagement with crypto, highlighting how regulatory hurdles and speculative cycles shaped market participation. He outlines the rise of Digital Asset Treasury (DAT) companies, crediting Michael Saylor’s MicroStrategy for pioneering the model by converting $400 million in cash to Bitcoin - now holding over $75 billion in BTC. We examine how Binance, with 290 million users and 40% of global crypto volume, supports BNB as a deflationary asset, burning up to $2 billion per quarter. Finally, Namdar shares why BNB, not Bitcoin, is the focus of his new DAT initiative, offering U.S. investors exposure to an underrepresented but powerful asset.

How WalletConnect Became the $400B Web3 Connectivity Layer, with CEO Jess Houlgrave 28.10.2025 41min

In this episode, Lex speaks with Jess Houlgrave, CEO of WalletConnect. In this episode Jess explains how WalletConnect bridges wallets and decentralized applications (dApps), simplifying secure blockchain interactions for millions of users. Together, Lex and Jess discuss the platform’s origins, technical innovations, and massive scale - supporting over 700 wallets and 70,000 projects. The conversation covers challenges in integrating traditional finance with Web3, regulatory compliance, and WalletConnect’s decentralized, token-incentivized network. Jess also shares insights on the future of on-chain commerce, global adoption trends, and the evolving relationship between fintech and blockchain infrastructure.

How Tandems/SigFig became a $60B Wealth AI platform, with CEO Mike Sha 06.10.2025 44min

In this episode, Lex speaks Mike Sha - the CEO and co-founder of Tandems (formerly SigFig), a leading provider of AI-powered software for wealth management firms and financial institutions. Together, Lex and Mike discuss the evolution of wealth technology through the lens of Mike’s entrepreneurial journey from founding Wikinvest in 2006 to building Tandems. Wikinvest pivoted to portfolio tracking and then to a B2B model, powering major portals like Yahoo Finance and managing over $500 billion in tracked assets. The team’s insights into poor retail investment behavior led to building SigFig, a B2B robo-advisor, eventually serving banks like UBS and Wells Fargo. Today, rebranded as Tandems, the firm offers AI-powered tools for advisors across three key areas: meetings, asset gathering, and investment management, with AI integrated via a modular “wealth OS” platform. Tandems uses an open architecture for AI, prioritizing trust, configurability, and high accuracy tailored to the specific workflows of financial advisors.

Managing $2B+ in On Chain Assets, with KPK Co-Founder Marcelo Ruiz de Olano 09.09.2025 41min

In this episode, Lex speaks with Marcelo Ruiz de Olano, Co-Founder of KPK (Karpatkey), an on-chain asset management firm born out of Gnosis DAO. Marcelo recounts KPK’s evolution from stewarding Gnosis’s $1B treasury to advising on more than $2B for leading protocols like ENS, Balancer, and the Ethereum Foundation. The discussion dives into the mechanics of non-custodial treasury management - balancing governance, security, and risk - along with strategies across lending, liquidity provision, and stablecoin yields. Marcelo also shares why the rise of large Ethereum treasury companies could be a turning point for DeFi, injecting institutional-scale liquidity and potentially making ETH more liquid than Bitcoin.

Building the $130B global payments platform, with Airwallex’s Ravi Adusumilli 21.08.2025 50min

In this episode, Lex speaks with Ravi Adusumilli - President and GM of the Americas at Airwallex. Ravi and Lex discuss how Airwallex has evolved into a global financial platform by offering businesses an integrated suite of cross-border payments, treasury, and banking services. Founded in 2015, Airwallex now supports 150,000 customers, processes $130 billion in annualized volume (up 73% YoY), and projects a $1 billion revenue run rate by year-end. The company’s success stems from its end-to-end infrastructure, homegrown payment rails, and multi-product strategy, with 80% of revenue now coming from customers using more than one product. Airwallex differentiates itself by focusing on global-first B2B use cases and building regional autonomy alongside centralized infrastructure. While not prioritizing stablecoins today, the company is exploring AI-driven financial operations and aims to reach $1 trillion in transaction volume by 2030.

How to Invest in the best Crypto Funds, with Matthew Le Merle CEO of Blockchain Coinvestors 11.08.2025 52min

Lex chats with Matthew Le Merle - CEO of Blockchain Coinvestors, a leading blockchain and AI fund-of-funds. He reflects on the limitations of large institutions in adopting disruptive technologies and why he chose to back innovators over incumbents, using stablecoins as an example of asymmetric value creation. Le Merle explains his evolution from angel investor to institutional LP, highlighting the benefits of leveraging top-tier venture capitalists’ expertise in inefficient early-stage markets. He outlines the psychological challenges of venture investing, where failures appear early and outsized wins often take a decade, contrasting this with the faster liquidity but higher existential risk in token markets. Finally, he critiques institutional allocators for over-relying on efficient markets, under-allocating to venture despite its role in driving future value, and positions his strategy as fully committed to early-stage blockchain and AI as the highest-returning segments. NOTABLE DISCUSSION POINTS: 1. Innovation Threatens Incumbents, Benefits Disruptors: Major technological shifts, from the internet to blockchain and AI, create winners and losers. Incumbents often resist disruptive change because it threatens existing revenue models, while nimble startups and tech-first companies can rapidly capture new market opportunities. 2. Venture Success Requires Navigating High Failure Rates: In early-stage investing, most portfolio companies will fail, often within the first 3–4 years. Returns are driven by a small number of outsized successes, usually via acquisitions rather than IPOs, requiring patience, resilience, and a disciplined investment strategy. 3. Inefficient Markets Offer the Greatest Asymmetric Upside: Early-stage venture and emerging technologies like blockchain and AI are inefficient markets where superior access, insight, and execution can generate returns far above those available in traditional, efficient markets like public equities or bonds.

How the Central Bank of Brazil built Pix, powering 6 billion monthly transactions 25.07.2025 41min

Lex chats with Harish Natarajan - Practice Manager, Financial Inclusion and Infrastructure, Finance, Competitiveness & Innovation at the World Bank, and Carlos Brandt - The Senior Advisor for Pix at the Central Bank of Brazil. Together they discuss the remarkable success of Pix, Brazil's real-time payment system, which now sees over 6 billion transactions per month and is used by more than 90% of the adult population and 80% of companies. Lex explores how Pix was created by the Central Bank of Brazil with strong public-private collaboration, backed by regulatory authority and supported by a co-creation model with stakeholders. Key to its adoption were a low-cost centralized infrastructure, clear branding, mandatory participation by large banks, and a robust national communication strategy. Globally, Pix is seen as a leading example of fast payment system deployment, driven by the central bank acting as a neutral coordinator and scheme owner. Lex also examines the technical architecture, built in-house by a surprisingly small team of 55–65 people, and how scalable infrastructure and extensibility have enabled rapid growth and innovation. NOTABLE DISCUSSION POINTS: 1. Pix achieved mass adoption through public-private co-creation and legal mandate: Pix now processes over 6 billion transactions per month, with 90% of Brazil’s adult population and 80% of businesses actively using it. Its success stems from a strategic legal mandate in 2013 granting the Central Bank regulatory and operational authority over retail payments. The Central Bank then led a co-creation process involving both public and private stakeholders through the Pix Forum, fostering alignment, inclusivity, and strong network effects. 2. A lean but powerful team built a nation-scale real-time payments system: The Pix infrastructure was built entirely in-house by a relatively small team, 30-40 people for the technical infrastructure layer and around 25 for the payment scheme layer. It operates 24/7 with real-time settlement and uses centralized infrastructure separate from Brazil’s traditional large-value payment rails. This centralized, purpose-built architecture dramatically lowered costs and enabled rapid rollout. 3. Strategic communication and mandated participation drove adoption at scale: The Central Bank led a national communication campaign to build trust, establish a strong brand identity, and educate the public. Simultaneously, it mandated major banks (with over 500,000 active accounts) to join Pix, triggering widespread voluntary adoption from smaller PSPs. The rollout included a restricted pilot phase and emphasized user-friendly features like QR codes and aliases to boost convenience and usage from day one. TOPICS Pix, Central Bank of Brazil, World Bank, Visa, Citibank, M-Pesa, Alipay, SPI, fintech, payments, PSP, API, Fast Payments, Payments Infrastructure, PayTech ABOUT THE FINTECH BLUEPRINT 🔥Subscribe to the Fintech Blueprint newsletter to stay at the forefront of Fintech and DeFi: https://bit.ly/3hyhlC2 🤝 Partner with Fintech Blueprint through sponsorships: https://bit.ly/3UZllsV 👉 Twitter: https://twitter.com/LexSokolin TIMESTAMPS 1’19: Building Pix from the Ground Up: Carlos Brandt on Modernizing Brazil’s Payment Infrastructure 3’03: Fast Payments for Financial Inclusion: Harish Natarajan on the World Bank’s Role in Modern Payment Infrastructure 4’29: From Cash to 5 Billion Transactions a Month: How Pix Transformed Brazil’s Payment Ecosystem Through Public-Private Collaboration 10’41: Why Pix Succeeded Where Others Struggled: The Power of Neutral Coordination and Public-Private Synergy 12’40: Inside the Pix Forum: How Brazil Built a Collaborative Process for Payment Innovation 15’07: Fast Payments at Scale: Market Coordination, Infrastructure, and Global Lessons from Pix 20’55: Engineering Pix: How a Small Team Built Brazil’s 24/7 National Payments Infrastructure from Scratch 27’28: Driving Nationwide Adoption: How Strategic Communication and Mandates Powered Pix’s Rollout Across Brazil 34’14: Scaling for Success: Why Communication, Extensibility, and API Design Are Key to Evolving Payment Systems 37’23: Building Trust Through Cooperation: How Regulators Can Foster Innovation While Balancing Public and Private Interests 40’06: The channels used to connect with Carlos & learn more about The Central Bank of Brazil. 40’39: The channels used to connect with Harish & learn more about The World Bank

Building the €8 Billion neobank, with Bunq CEO Ali Niknam 15.07.2025 40min

Lex speaks with Ali Niknam, CEO and founder of Bunq, a leading European neobank. Ali shares Bunq’s journey from its founding during the financial crisis to becoming Europe’s second-largest neobank. The conversation explores Bunq’s user-centric philosophy, innovative products, and unique organizational design. Ali discusses overcoming regulatory challenges, prioritizing cultural values, and fostering accountability within teams. The episode also examines the complexities of the European fintech landscape and Bunq’s mission to revolutionize banking by focusing on user needs and continuous improvement. MENTIONED IN THE CONVERSATION Topics: Bunq, ING, Revolut, Betterment, Synapse, TransIP, Fintech, banking, crypto, neobank, challenger bank, culture, Europe, VC ABOUT THE FINTECH BLUEPRINT 🔥Subscribe to the Fintech Blueprint newsletter to stay at the forefront of Fintech and DeFi: https://bit.ly/3hyhlC2 🤝 Partner with Fintech Blueprint through sponsorships: https://bit.ly/3UZllsV 👉 Twitter: https://twitter.com/LexSokolin TIMESTAMPS 1’09: Bunq’s Bold Mission: Ali Niknam on Reinventing Banking for the Modern User 6’27: Building from the Core: Why Bunq Chose the Hard Road to Reinvent Banking 10’08: Bootstrapped Banking: Building Bunq Without External Capital or Compromise 13’56: Launching the Future: Bringing Innovation to Market with Bunq’s First 45-Person Team 17’35: From Payments to Personalization: How Users Drove a Decade of Product Innovation 19’52: Designing for Eva: How Bunq Rebuilt Its Organization Around the User, Not the Org Chart 22’02: Beyond Titles: How Bunq’s Ownership-Driven Culture Redefines Teams, KPIs, and Hierarchy 28’14: Culture Over Compensation: How Bunq Attracts Mission-Aligned Talent Without Relying on Equity 35’06: Europe’s Tech Paradox: Why Innovation Thrives Despite Fragmentation—and What Must Change 39’11: The channels used to connect with Ali & learn more about Bunq 43’07: The channels used to connect with Edward & learn more about Zerohash

Growing to $45B in volume on Zerohash crypto infra, with CEO Edward Woodford 27.06.2025 43min

Lex chats with Edward Woodford - CEO of Zerohash. They discuss Zerohash’s growth, the rise of stablecoins, and the evolving fintech landscape. Edward explains how stablecoins now make up half of Zerohash’s volume, highlights regulatory shifts in the U.S. and abroad, and explores the distinction between crypto and stablecoins. The conversation covers usability challenges, emerging payment use cases, and the future of embedded finance, emphasizing the need for regulatory clarity and collaboration between fintechs and traditional financial institutions. Notable discussion points: 1. Stablecoins Overtake Crypto in Volume: Stablecoins now make up over 50% of Zerohash’s volume, driven by regulatory clarity and real-world use cases like payments and treasury. Institutions prefer them for their centralized control and ease of integration. 2. Brokerage and Payments Are Converging: Zerohash sees strong demand across brokerage and payment rails, with banks and fintechs embedding stablecoin infrastructure. Global payouts, account funding, and subscriptions are key growth areas despite UX friction. 3. Regulatory Climate Is Rapidly Improving: U.S. policy has shifted from regulatory overreach to bipartisan support for stablecoin legislation. This change is unlocking institutional adoption, with banks now moving aggressively into crypto and digital assets. MENTIONED IN THE CONVERSATION Topics: Zerohash, MoonPay, Transak, Ramp, Stripe, BlackRock, Franklin Templeton, Hamilton Lane, Morgan Stanley, Charles Schwab, SoFi, Uniswap, fintech, web3, digital assets, blockchain, tokenization, rwas, stablecoin, crypto, regulation ABOUT THE FINTECH BLUEPRINT 🔥Subscribe to the Fintech Blueprint newsletter to stay at the forefront of Fintech and DeFi: https://bit.ly/3hyhlC2 🤝 Partner with Fintech Blueprint through sponsorships: https://bit.ly/3UZllsV 👉 Twitter: https://twitter.com/LexSokolin TIMESTAMPS 1’51: From Crisis to Convergence: Edward Woodford on Scaling Zerohash and the Future of Embedded Crypto Infrastructure 5’06: Scaling the Pie, Not Stealing Slices: Rethinking Volume, Margins, and Meaningful Growth in Digital Asset Infrastructure 10’02: The Great Rebrand: How Stablecoins Are Shedding the 'Crypto' Label and Reshaping Digital Finance 15’22: From Overreach to Opportunity: How Regulatory Pushback in the U.S. Sparked a Global Shift Toward Stablecoin Adoption 20’31: The Semantics of Trust: Why ‘Stablecoin’ Sells and ‘Crypto’ Scares - and Why the Framing Now Matters More Than Ever 22’36: Unlocking Real Utility: Why Stablecoin Payments Are Finally Poised to Scale Across Commerce and Subscriptions 30’50: Disrupting the Rails: How Stablecoins Are Reshaping the Power Dynamics of Global Payments 34’49: The New Brokerage Mandate: Why Every Platform Is Racing to Add Crypto - and What’s Unlocking the Shift 39’03: Rewiring Financial Infrastructure: How Stablecoins and Super Apps Are Forcing Banks to Rethink Risk and Relevance 43’07: The channels used to connect with Edward & learn more about Zerohash