Hey, I’m Vlad 👋

I build things on the internet. Some of it works, some of it crashes spectacularly—but either way, I write about it here.

A few projects that had traction:

Roic.ai – A tool that helps 200,000 investors a month untangle financial data. Built it from scratch. It works, it grows, and people love it.

ReverseMails – It’s a reverse email lookup that helps businesses figure out who’s behind an address—so you can understand your customer before pitching them your groundbreaking idea.

Sendall.co — A supercharged B2B database of people and private companies. Unlimited access to 97 million leads. Zero fluff, all signal.

What you’ll get by following me:

Think of this as my open lab notebook—where experiments, insights, and hard-won lessons get shared in real time. It’s not for everyone. But if you’re serious about building, testing, and selling smarter, you’ll feel right at home here.

Let’s get to work.

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A candid chronicle of my journey as a founder of roic.ai, delving into the highs, lows, and shallow water of backyard ideas.

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Mathematician. Investor. Founder of roic.ai Twitter: @vladcx