fractional cto · explained
What is a fractional CTO?
And do you actually need one?
A senior technical leader who joins your business part-time — setting the direction and shipping the work — for a fraction of the cost of a full-time hire. Here's what one actually does, and how to know when it's the right call.
Currently accepting 2 new clients · replies within a business day
the short answer
A fractional CTO is an experienced technical leader who works with your company part-time — a few days a week, or a set number of hours a month — instead of as a full-time executive.
You get the judgment of someone who has built and scaled software before: architecture decisions, technology choices, hiring, the roadmap, and the discipline to actually ship. What you don't take on is the ~$250K+ salary, the equity, and the overhead of a full-time CTO you may not need yet.
Fractional doesn't mean part-attention. It means the right senior person, focused on the decisions that actually move your business.
The model works because most companies don't need a CTO all the time. They need one at specific, high-stakes moments — a rebuild, a first technical hire, an AI initiative, a roadmap that has stalled. A fractional CTO meets you at exactly those moments, and steps back when the heavy lifting is done.
Signs it's time to bring one in
If two or three of these sound familiar, a fractional CTO usually pays for itself fast.
No technical north star
You're making product and engineering decisions by gut, or quietly deferring them. Nobody owns the architecture, the roadmap, or the "are we even building this the right way?" question.
Your first engineering hires
You're about to hire developers but don't know what to look for, how to interview them, or what they should build first. The wrong early hires are slow and expensive to undo.
The backlog is winning
Your systems slow the business down and the list of fixes only grows. You need someone to write the roadmap and ship against it — not just hand you advice.
how it compares
Fractional CTO vs. the alternatives
Before you hire, it's worth being honest about which problem you're actually solving.
- vs. a full-time CTO — Same seniority, a fraction of the cost and commitment. The right call when you need the judgment but not forty hours a week of it.
- vs. an agency — An agency builds what you spec. A fractional CTO helps you decide what to build, owns the technical strategy, and is accountable to your business — not to billable hours.
- vs. a senior developer — A great developer executes. A fractional CTO sets direction, makes the architecture and hiring calls, and ties every technical decision back to where the business is going.
The honest version: if you already know exactly what to build and just need hands, hire a developer or an agency. If the technical decisions themselves are the risk, that's what a fractional CTO is for.
why data mcfly
Most fractional CTOs advise. I build.
I'm Roger Stringer, a product engineer with 27+ years of shipping software that scales. With AI-augmented workflows, a single engagement reliably delivers the output of a full team — the strategy and the code to back it up.
That means you don't get a slide deck and a Slack channel. You get architecture decisions, a roadmap, and working software, from the same person. I take on a small number of clients at a time, on purpose, so every engagement gets the attention it deserves.
Go deeper → The Fractional CTO Field Guide — the deep dive on hiring and working with one.
Related reading
- Do you actually need a CTO yet?
- 5 signs your codebase is quietly costing you customers
- The 70/30 Method — how I deliver a full team's output in one engagement
Not sure if a fractional CTO is what you need?
That's exactly what a 30-minute call is for. We'll talk through where you are and whether I'm the right fit to help — no pitch, no pressure.
No sales pitch. Just a conversation about what's possible.