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wealthtech on deck podcast - John Sweeney

Using AI and Blockchain to Build Custom FinTech Solutions with John Sweeney

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John Sweeney is a seasoned financial services leader with a career spanning senior roles at Fidelity Investments to entrepreneurial ventures at the forefront of innovation. Over nearly two decades at Fidelity, he drove product and technology development across mutual funds, ETFs, managed accounts, and retirement solutions. After leaving Fidelity, he immersed himself in startups exploring blockchain, alternative investments, and AI. Today, as head of Praxis Solutions, he blends strategic insight with advanced technology execution, helping wealth and asset management firms harness AI and blockchain to improve efficiency, decision-making, and client outcomes.

This week, Jack talks with John about how Praxis Solutions uses AI and blockchain in concert to solve complex challenges in financial services. From dramatically reducing investment review times to enhancing compliance processes, John explains how his team builds custom, scalable tools that integrate into existing workflows. They explore blockchain as a “source of truth” and AI as a visible decision-making engine—technologies that together improve efficiency, reduce costs, and democratize access to institutional-grade advice while maintaining accuracy, transparency, and regulatory compliance.

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