Results

Products launched, and the businesses they grew.

What I built, what it did for the business, and what had to be true along the way. The whole record is on LinkedIn if you’d rather check it.

CoachMantis · founded 2026

A product I founded and built myself

What I built

The whole product, from a blank page to live, with AI coding agents: a brief on the company and role, a resume review against the job, and practice interviews graded on a clear rubric.

What it did for the business

A live product at coachmantis.com that anyone preparing for an interview can start using for free.

Along the way

Every decision a first version needs: who it’s for, what ships first, what it costs to run.

Seamless.AI · CTO

Products still core to what the company sells

What I built

Products those teams built are still core to what Seamless sells, with AI in the product itself: search, data enrichment and generated content.

What it did for the business

Moved the company beyond data into workflow, because workflow is what keeps customers renewing. AI in how engineering, QA and product worked, so each engineer shipped more.

Along the way

SOC 2 Type 2 in under eight months, which made enterprise deals closable, and a roadmap the business could plan against.

Datassential · CTO

A major new product, launched in my first year

What I built

The product team, and a major new product shipped inside my first year. The forecasting and trend models in the product.

What it did for the business

Ran the numbers on every product we sold, and retired two that were quietly losing money.

Along the way

Product and engineering process put in place where the growth had outrun it.

RainKing → DiscoverOrg → ZoomInfo

From four engineers to a public company

What I built

The product and the engineering team at RainKing, starting with four engineers.

What it did for the business

DiscoverOrg acquired RainKing and I became CTO of the combined company. We then acquired ZoomInfo and took the business public under that name.

Along the way

Two rounds of diligence, no surprises in either.

What will you build next?

Ask me for references. I’ll put you on the phone with CEOs I’ve reported to and founders whose engineering I’ve run. They’ll tell you what I’m like when it’s going badly, which is the part worth knowing.

Tell me what you’re building

You’ll leave with the three things I’d do first, whether or not we work together.