Hire a Fractional CTO
Founders usually arrive with a title in mind: "We need a fractional CTO." On the first call, I look for the specific gap: unclear technical direction, a senior hire nobody can evaluate, or an architecture decision nobody owns. That determines whether a fractional CTO is the right fit and what the engagement should cover.
Book a Free ConsultationWhen Should You Hire a Fractional CTO?
Not every company needs a fractional CTO. When founders tell me their developers are too slow, the cause is often elsewhere: priorities change every week, requirements arrive unfinished, or nobody owns the roadmap. I can help when the bottleneck needs one experienced person to make the call and own the consequences. These are the situations I look for:
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, and security approach all have costs that compound. A bad decision can take months to unwind.
You need to hire engineers but don't know how
A fractional CTO can define the roles, evaluate candidates, and build a hiring process your team can keep using.
How to Hire a Fractional CTO
Before you speak to candidates, decide which decisions you expect them to own. Then interview them against problems that already exist in your company.
Map your actual technical needs
"We need a CTO" is a title, not a problem. Write down what is stuck. You may need someone to set technical direction, prove the riskiest part of an MVP, lead an existing team, or stabilize a system that keeps failing. The bottleneck defines the job and the experience you should look for.
Pick the engagement model and budget
Advisory fits a team that can execute but needs help with technical decisions. Embedded part-time fits a company that needs someone to own the engineering function for one to three days a week. Interim is a heavier, time-boxed role while you make a permanent hire or get through a transition. My engagements are paid retainers with no equity component and a clear cancellation clause. See the pricing breakdown for scope and rates.
Start with referrals
Ask founders one stage ahead who helped them resolve a difficult engineering or delivery problem, and ask investors which technical leaders they have seen work well with early-stage teams. Public writing and talks are useful too: they let you examine how someone reasons before you invite them into the company.
Test how they decide, then define the terms
Give candidates a real situation from your company and listen to the questions they ask before proposing a solution. Ask them to explain the tradeoff to both a founder and an engineer. Then check references: would they hire this person again, what changed while they were there, and what kind of problem would they trust them to own? Put the scope, decision authority, IP ownership, and termination terms in writing. Ambiguous IP clauses have a habit of resurfacing during due diligence.
What to Look for in a Fractional CTO
Pay attention to how candidates reach a decision. A strong one asks about the business constraint, names the tradeoff, and tells you what they would postpone. Agreement is easy. You need someone who can disagree clearly when the cost of a bad decision will compound.
Green Flags
- Starts with the business constraint before discussing the stack
- Can describe a similar problem and what changed after they joined
- Separates reversible decisions from expensive, long-term bets
- Comfortable saying "I don't know" or "you don't need that"
- Can explain the same tradeoff to both a founder and an engineer
Red Flags
- Pushes a specific tech stack before understanding your needs
- Describes activity but cannot name an outcome they changed
- Wants to rewrite everything from scratch
- Treats every architecture decision as permanent or urgent
- Avoids references or cannot discuss a decision that went wrong
When NOT to Hire a Fractional CTO
A fractional CTO is the wrong hire in several common situations:
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 engineering is the company's core capability and needs daily ownership for the next several years, recruit a full-time CTO or technical co-founder. A fractional engagement cannot provide that level of commitment.
The work is execution, not leadership
If the product is already specified and you need more hands to build it, hire engineers or an agency. CTO involvement only adds cost when the technical direction and delivery model are already clear.
You won't actually cede control
A fractional CTO needs clear authority over the decisions in scope. If every architecture or roadmap call will be overruled, hire a contractor to execute your plan and price the work accordingly.
Fractional CTO vs. Full-Time CTO
For a startup that needs senior technical leadership without a full-time executive, a fractional engagement can cover the gap with less cost and commitment. See what the work looks like once I join the startup, or review the scope of each tier on the pricing page.
| Fractional CTO | Full-Time CTO | |
|---|---|---|
| Monthly cost | $4K-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?
In 30 minutes, we'll identify the technical bottleneck, the decisions that need an owner, and whether a fractional engagement fits. If the right answer is a technical co-founder, an engineer, or an agency, I'll tell you.
Schedule a Free ConsultationFrequently Asked Questions
How do I hire a fractional CTO?
Start by defining the problem you need the CTO to own. Then choose the engagement model and budget, get referrals from founders and investors, and interview candidates using a real situation from your company. Put the scope, decision authority, IP ownership, and termination terms in writing before the work starts.
Where do I find a fractional CTO?
Start with referrals. Ask founders one stage ahead who helped them resolve a difficult engineering or delivery problem, and ask investors which technical leaders they have seen work well with early-stage teams. Public writing and talks can also show you how someone reasons before you invite them into the company.
Can I hire a part-time CTO for my startup?
Yes. A part-time CTO works well when you have engineers but no senior technical leader. Most engagements run one to three days a week and can expand temporarily during a launch, a senior hire, or a raise. If the company needs daily technical ownership for years, hire a full-time CTO or technical co-founder instead.
How do I interview a fractional CTO?
Give candidates a real situation from your company and listen to the questions they ask before proposing a solution. Ask them to explain the tradeoff to both a founder and an engineer. Then check references: would they hire this person again, what changed while they were there, and what kind of problem would they trust them to own?
When should you NOT hire a fractional CTO?
Do not hire a fractional CTO when you still need to validate the idea, when engineering is the company's core capability and needs a full-time owner, when the work is straightforward implementation, or when you are not prepared to delegate technical decisions. Each of those situations calls for a different hire.