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Podcast: using AI and blockchain to build Custom FinTech solutions

September 17, 2025
30 MIN READ 30 MIN READ

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.

About this podcast.

WealthTech on Deck is an SEI podcast about the future of wealth management and the major role technology plays in it. 

About SEI LifeYield®.

SEI LifeYield is an industry leader in multi-account, tax-smart technology, helping financial institutions and their advisors distinguish themselves by enhancing their ability to meet clients’ growing needs. SEI LifeYield APIs, unified managed household technology, and tax overlay services provide many tax and income optimization strategies to improve financial planning and long-term outcomes.  Learn more about SEI LifeYield.

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Services provided by SEI LifeYield, LLC, a subsidiary of SEI Investments Company (SEI). Neither SEI nor its affiliates provide tax advice. Please note that (i) any discussion of U.S. tax matters contained in this communication cannot be used by you for the purpose of avoiding tax penalties; (ii) this communication was written to support the promotion or marketing of the matters addressed herein; and (iii) you should seek advice based on your particular circumstances from an independent tax advisor. Please consult with your financial advisor regarding topics discussed herein and whether they are appropriate for your particular situation.

Investing involves risk including possible loss of principal. In addition to the normal risks of investing, alternative investments are subject to a complete loss of capital and are only appropriate for parties who can bear that risk and the illiquid nature of such investments.