Hire a Fractional CTO
After enough of these engagements, the problem a founder describes on the first call is almost never the one they have. "We need a fractional CTO" usually means something narrower and more fixable: a roadmap that keeps slipping, a hire nobody can evaluate, an architecture call being made blind. Getting the hire right starts with naming the real one. Here's the process I use.
Book a Free ConsultationWhen Should You Hire a Fractional CTO?
Not every company needs a fractional CTO, and founders routinely misdiagnose the gap. "Our developers are too slow" is often a product problem wearing a technical costume: requirements change three times a week and nobody owns the roadmap. So read these signals honestly. If you recognize a few of them, it's probably time:
You have developers but no technical leader
Your team is building features but nobody is making strategic architecture decisions or defining the technical direction.
You're scaling and things are breaking
What worked at 100 users doesn't work at 10,000. You need someone who's scaled systems before to guide architecture decisions.
You're preparing for fundraising
Investors expect technical credibility. A fractional CTO handles due diligence, tech presentations, and gives VCs confidence in your tech.
Tech debt is slowing you down
Features that used to take days now take weeks. You need someone to prioritize what to fix and create a plan to pay down the debt.
You're making big tech decisions blindly
Cloud provider, database choice, build vs. buy, security approach—these decisions compound. Getting them wrong costs months to fix.
You need to hire engineers but don't know how
Writing job descriptions, evaluating technical skills, structuring interviews—a fractional CTO builds the hiring process that gets you the right people.
How to Hire a Fractional CTO
The role is young enough that there's no standard playbook, so the market fills up with confident people selling whatever they happen to be good at. Four steps to find the one who fits the job you actually have.
Map your actual technical needs
"We need a CTO" is a title, not a problem. The role covers four jobs almost nobody does equally well: the strategist who sets direction, the builder who ships the MVP, the manager who unblocks a team, the fixer who stabilizes a system on fire. Write down which one is your bottleneck. That's your job description.
Pick the engagement model and budget
Advisory is a few hours of judgment a week; embedded part-time (one to three days) fits most seed teams; interim is heavier and time-boxed. Whichever you pick, expect 30-50% of a full-time hire, no equity dilution, and a cancellation clause. The cheapest candidate usually costs the most once you count the months a bad fit burns. For what each tier includes, see the pricing breakdown.
Source through people, not posts
Nobody good is answering a job post. The role runs on referral. Ask founders one stage ahead of you who fixed their engineering org, and ask your investors for the short list they trust. Someone writing thoughtfully about engineering leadership in public is advertising the exact judgment you're trying to buy.
Interview for judgment, then put it in writing
You can't test this with a coding challenge (a frontier model one-shots take-homes anyway). Describe your situation and watch whether they push back with a reason, then ask their references the one question that matters: would you hire them again, and what for? Once you're sure, get scope, IP, and the exit in writing, on a monthly retainer rather than hourly. The IP clause is the one that bites in due diligence during a raise.
What to Look for in a Fractional CTO
You're hiring judgment, and that's harder to interview for than code. Watch for the candidate who disagrees with you and explains why. The ones who agree with everything are telling you they won't push back when it counts.
Green Flags
- Asks about your business goals before talking about technology
- Has built and scaled teams, not just written code
- References from companies at a similar stage to yours
- Comfortable saying "I don't know" or "you don't need that"
- Can communicate with both engineers and executives
Red Flags
- Pushes a specific tech stack before understanding your needs
- No experience leading or managing teams
- Wants to rewrite everything from scratch
- Can't explain technical concepts to non-technical people
- Won't provide references or case studies
When NOT to Hire a Fractional CTO
I'd be selling you something dishonest if I pretended this is always the answer. A few cases where you should not hire one, at least not yet.
You're pre-idea, not pre-product
If you don't yet know what you're building, you need to talk to customers, not architect anything. A fractional CTO at that stage is an expensive way to feel productive. Come back when there's something to build.
The technology IS the business
If the entire company is a deeply technical product and you'll live or die on engineering for five years, you need a full-time technical co-founder with founder-level skin in the game. Fractional is leverage on a problem, not a substitute for a missing co-founder.
The work is execution, not leadership
If what you need is two engineers to build a clearly-specified product, hire two engineers or an agency. Paying CTO rates for someone to write code you already know you need is buying a strategist to do a builder's job. Match the hire to the gap.
You won't actually cede control
A fractional CTO only works if you let them lead the technical decisions you hired them to lead. If you'll overrule every architecture call and keep a death grip on the roadmap, you want a contractor to execute your plan. Hire and price accordingly.
Fractional CTO vs. Full-Time CTO
For most startups and small companies, fractional covers 100% of your needs at a fraction of the cost. Engagement models and what each tier includes live on the pricing page.
| Fractional CTO | Full-Time CTO | |
|---|---|---|
| Monthly cost | $5K-15K | $17K-25K+ (salary + equity) |
| Time to hire | 1-2 weeks | 3-6 months |
| Commitment | Month-to-month | Long-term + equity |
| Availability | 10-20 hours/week | 40+ hours/week |
| Strategy & leadership | Yes | Yes |
| Team leadership | Yes | Yes |
| Risk if wrong fit | Low (end anytime) | High (severance, disruption) |
About Me
I'm Ezequiel Actis Grosso, an experienced technology leader with over 25 years of experience in software development. I've worked across the globe—from Buenos Aires to Miami, and from San Francisco to Sydney—helping companies of all sizes succeed, from global corporations to fast-growing startups.
For the past decade, I've partnered with startup and scale-up founders in Latin America and the United States, helping them move fast, find product-market fit, scale their B2B SaaS products, and avoid leaky retention—without the burden of over-engineering and processes that slow them down.
- Track record of successful digital transformations
- Deep expertise in cloud and product development
- Proficient in DevOps practices and GenAI
Ready to Hire a Fractional CTO?
Start with a free 30-minute conversation. I'll learn about your situation and give you an honest assessment of what kind of tech leadership you need—even if it's not me.
Schedule a Free ConsultationFrequently Asked Questions
How do I hire a fractional CTO?
Run a real process instead of buying a title. Map what's actually broken, pick the engagement model that fits, set a budget, source through other founders and investors (not job posts), interview for judgment rather than code, and write a contract that's specific about scope, IP, and termination. The common mistake is signing a vague retainer with someone impressive and discovering three months later that nobody can say what changed.
Where do I find a fractional CTO?
Not on a job board. The strongest ones are booked through their network, recommended by founders they've already helped, or visible because they write and speak in public. Ask founders one stage ahead of you who helped them figure out their engineering org, and ask your investors for the short list a good seed fund keeps. And read backwards from public work: someone writing thoughtfully about engineering leadership is advertising the exact judgment you're trying to buy.
Can I hire a part-time CTO for my startup?
Yes. It's the most common shape for a seed-stage startup with some engineers but no technical leadership. You're not hiring a fraction of a CTO's brain, you're hiring a fraction of their calendar. The thinking is full-time: a good one is pattern-matching your problem against every company they've seen, whether or not the clock is running. Most engagements run one to three days a week, with room to flex up during a launch or a raise.
How do I interview a fractional CTO?
You can't test one with a coding challenge (a frontier model one-shots take-home tests in five minutes, and they were testing the wrong thing anyway). Describe your situation and watch whether they diagnose without flattering you: a strong candidate tells you the QA team you're about to hire is a process problem in disguise. Ask them to explain a technical decision as if you were the non-technical founder you are. Push past "I've scaled teams" to the scar tissue. And ask whether success includes you needing them less over time.
How much does it cost to hire a fractional CTO?
Roughly 30-50% of a full-time CTO's cost, with no equity dilution and a cancellation clause. The exact number depends on the engagement model and how many days a week you want. See the full pricing breakdown for what each tier includes.
When should you NOT hire a fractional CTO?
When you're pre-idea rather than pre-product, and you need customers before you need any architecture. When the technology is the business and you actually need a full-time technical co-founder. When the work is execution, not leadership, and you'd be paying CTO rates for code you already know you need. And when you won't cede any technical decisions, in which case you want a contractor to execute your plan, not a CTO.