David Vartanian

Put your money and effort where your customers are already asking.

AI systems and Fractional CTO

The Subtraction Strategist

I'm David Vartanian. I help businesses earn more first and spend less second. For freelancers and small businesses, I build AI systems. For larger product companies, I work as a Fractional CTO.

Work with me
Warsaw, Poland

Everything that can be automated, should be automated.

About

I've built software in product companies for more than twenty years. The same thing kills businesses at every size: time and money go into things nobody asked for. I call that malinvestment. Every hour spent on it raises your risk.

Now I build AI systems that point your effort at demand. I use them myself every day. An assistant answers my client email. Automations follow up on leads so none go cold. Internal tools replace manual busywork. I work through Beamer, the company I founded.

What I Do

Freelancer, professional or small company? What should you automate with AI first? The work that eats your time and doesn't earn money. I find it, automate it, and speed up the work your customers pay for. That can be an AI agent that acts on its own, a bot, a custom AI automation that connects your tools, or a piece of AI software. An agent can read, decide and reply. I also build image and video generation workflows.

You don't need technical skills. I build it, set it up, and show you how to run it. I do not sell a new process religion or a tool subscription you'll forget about.

For bigger product companies, I work as a Fractional CTO through audits, retainers, consulting sessions or hands-on work. I find the engineering money going to things customers never asked for, and I move it to what they are asking for.

AI agents and automations for small businesses →

AI support assistants that answer repeat questions →

Adding AI features to your product →

Fractional CTO for product companies →

In progress

The Engineering Tax

The book I'm writing about the hidden costs that eat product-company margins, and how to stop paying them. It's the thinking behind how I work.

Read more about The Engineering Tax

Work with me

Tell me what your customers pay you for and where your time or budget goes. I'll tell you what I'd change first.

Book a 30-minute intro call

Pick a time that suits you. We'll talk about what your customers pay you for and where your time goes.

Rather talk by phone?

I don't publish my number, but you can request it.

Recommendations on LinkedIn. Client words at beamersoftware.com/testimonials. Beamer makes Defusor, which finds engineering overspend and reports it with a cost-cutting plan. It's open to free test companies now. If you're a Fractional CTO, Defusor might interest you too.

Prefer to write? Send me a message