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Portrait of James Simmons
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James Simmons

AI native. Twenty years of operating experience. Turns out the combination is a superpower.

Principal · Huntington Beach, California · LinkedIn · X · GitHub

James Simmons is a principal at Keepstone. Three executive-team exits — once as CEO, twice as CTO — and four startups founded or co-founded back the perspective, along with the last several years as a fractional CTO and startup advisor for venture- and PE-backed companies across construction, legal, healthcare, fintech, education, and SaaS.

He fell down the AI rabbit hole hard in 2024 and hasn't come back. His belief: AI fluency layered on decades of real-world operating experience is one of the most leveraged skill sets in business right now — and most organizations have one half or the other, rarely both. Software has been democratized, coding has been commoditized, the total amount of software running in the world is about to explode, and the operators now creating it don't know how to architect it for scale or operate it for stability and security. That's the gap Keepstone fills. The dev-shop economics that started flipping in 2025 made the old delivery models obviously dead by 2026, which is when he started the company.

He leads engagement, governance, and the parts of the business that need a name behind them. Continues to serve as Partner in the CTO Practice at Fortium Partners. Hasn't written a line of code himself in months; Claude Code handles that now. Based in Huntington Beach, California.

Posts by James Simmons

January 29, 2026

What Is Managed Software Ops?

A construction partner asked: 'You're not an MSP, not a dev firm, not a SaaS. So what are you?' Plain-language answer — six disciplines, one monthly fee.

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January 13, 2026

The Gap Between Built and Operated

Building custom software has gotten suddenly trivial. Operating it hasn't moved at all. That gap is the most under-discussed shift in small-business technology.

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