William Szamosszegi

I’m the President & Founder of Sazmining - a global Bitcoin Mining-as-a-Service platform that manages hardware on behalf of clients and delivers freshly mined BTC to their own wallets. Our mission is to make mining accessible, sustainable, and aligned with our customers’ success - 100% renewable energy, transparent economics, and client control of their rewards. 

Before this, I built and scaled multiple teams and tech systems in crypto and AI - focusing on systems that reduce operational friction, align incentives, and build real trust in decentralized networks.

My focus today is on infrastructure that reduces operational risk and increases deterministic trust, from mining operations powered by carbon-neutral energy to deterministic market settlement systems for digital asset ecosystems.

I speak and write about the intersection of Bitcoin infrastructure, energy, and scalable market protocols - and work with ecosystem leaders to move high-stakes systems from theory into real world adoption.

Let’s connect if you’re building or integrating mission-critical crypto infrastructure where rigorous, auditable, and operationally deterministic systems matter.

CEO & Founder & Secretary

Data processing that fosters innovation in Blockchain Technology, Artificial Intelligence, CGI Rendering, and Research. Our computing power supports the next generation of technological development — Web 3.0.

At Shield, I lead a B2B exchange for USDT, USDC, and other stablecoins. We enable exporters and wholesalers to transact internationally with confidence and speed.

Shield is a registered MSB in the US and licensed VASP in the EU, designed specifically for cross-border trade. We integrate KYC/KYB, sanctions screening, and transaction monitoring to ensure every transaction is secure and legitimate.

Shield now processes $50M+ monthly (over $200M YTD) across the US-LatAm corridor and beyond. We are backed by leading fintech investors, including a16z crypto, Giant Ventures, Kraken, MoonPay, and angels from JPMorgan, Bank of America, Amex, and Coinbase.

Before Shield, I advised financial institutions on risk and controls at McKinsey and co-founded a Y Combinator-backed supply chain company. These experiences shaped how I build trusted, regulation-forward systems at the intersection of payments, compliance, and technology.

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William Szamosszegi

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