Ezequiel Actis Grosso · Buenos Aires → USA & LATAM
Fractional CTO for USA & LATAM Startups
AI product architecture, tech strategy, assessments, and MVP development. From big-picture strategy to hands-on execution.
Situations
Is This You?
If any of these situations sound familiar, we should talk:
No technical co-founder and every architecture decision feels like a coin flip?
Your product is built by an agency and nobody on your side can judge the work?
Have an AI demo that impressed everyone—but still isn't a product you can sell?
Due diligence approaching and not sure how your stack will hold up to scrutiny?
Raising a round and investors keep asking who owns the tech?
Engineering team is shipping slower despite adding more developers?
If you checked even one box, let's talk.
Book Your Free ConsultationThe case
Why Hire a Fractional CTO?
Start Shipping in 1-2 Weeks, Not 3 Months
Get CTO-level leadership immediately without the long hiring process. Jump straight into solving bottlenecks and accelerating delivery.
Save $150K+ Annually vs Full-Time CTO
Hire a fractional CTO for strategic leadership and hands-on expertise at 30-50% of a full-time salary—with no equity dilution or long-term commitment.
Tap Into 25+ Years of Cross-Industry Experience
Pattern recognition across fintech, biotech, and SaaS: from AI architecture to due diligence, avoiding the costly mistakes a first-time CTO makes.
References
What People Say
What I do
Services Offered
Four ways I get brought in. Every engagement starts with one of these.
AI Product Architecture
Knowledge graphs, RAG pipelines, agentic workflows, and how to make money from them. In my last engagement I built a natural-language layer over a biomedical knowledge graph for a team serving global pharma.
Tech Strategy & Roadmapping
Business model validation, pricing architecture, and Wardley Mapping to work out which parts of your stack are commodity and which ones are actually your advantage. The work that needs to happen before any code gets written.
Tech & Team Assessments
Due diligence for investors, honest audits for founders. I evaluate the stack, the team, and the delivery capacity. I've assessed multi-tenant fintech platforms, credit-risk engines, and a digital bank.
MVP Development
From zero to first paying customer. I've shipped working products in a month and built others that led to acquisitions. I set the direction, then work with the team on the agentic loops that write, test, and improve what we ship.
Background
About Me
I'm Ezequiel Actis Grosso, a technology leader with 25 years in software — from Buenos Aires to Miami, and from San Francisco to Sydney, across global corporations and fast-growing startups.
For the past decade I've worked with founders in Latin America and the United States — helping them move fast, find product-market fit and scale their B2B SaaS products, without the over-engineering that slows them down.
Ezequiel Actis Grosso
Fractional CTO
- Architecture for AI products in production
- Technical due diligence for investors
- From zero to first customer with MVP delivery
Formats
Investment Levels
Three ways to start, depending on whether you need clarity, a working proof, or ongoing technical ownership.
Assessments
from $3,500
You need clarity before committing to a bigger engagement.
- Technical Assessment
- Team & Compensation Analysis
- Actionable recommendations
- 1 to 2-week delivery
Advisory + MVP
$5K-8K/month
CTO guidance plus a bounded MVP or POC slice to prove the riskiest assumption.
- Weekly strategy session
- Architecture and product-shaping decisions
- One bounded MVP or POC slice per month
- Async guidance and stakeholder support
Need guidance only? Advisory starts at $4K/month.
Embedded CTO
$10K-15K/month
Fractional CTO ownership for teams that need leadership, delivery, hiring, and technical accountability.
- Everything in Advisory + MVP, plus...
- Direct team leadership
- Roadmap ownership and shipping production code alongside the team
- Hiring, vendors, and technical accountability
All engagements start with a free consultation to ensure the right fit for your needs.
Writing
Latest Articles
Specialization is for Insects
Expert generalists are the asymmetric bet for what's next.
Read More →
Your Startup Doesn't Need a QA Team
Why formal QA teams slow down startups and what Big Tech actually does instead.
Read More →
Why Teams Get Stuck
How your team structure shapes what you can ship. Conway's Law in action.
Read More →FAQ
Frequently Asked Questions
What is a Fractional CTO?
A Fractional CTO is a part-time technology leader who provides strategic guidance and hands-on expertise to businesses that need CTO-level skills but don't need a full-time hire. This allows startups and SMEs to access high-quality leadership in a cost-effective manner.
How is a Fractional CTO different from hiring senior contractors?
Contractors execute tasks you define. A Fractional CTO thinks strategically about your business goals, makes architectural decisions, mentors your team, and takes ownership of outcomes—not just deliverables. I focus on building systems that scale and teams that ship, not just writing code.
What if I need you full-time for 2 months during a critical launch?
Absolutely possible. My engagements are flexible and can scale up or down based on your needs. Many clients start with advisory work, scale up to full-time during critical periods (launches, fundraising, major migrations), then scale back to ongoing strategic guidance.
Do you sign NDAs and IP agreements?
Yes, always. Every engagement includes proper NDAs, IP assignment agreements, and any compliance requirements your business needs. I work with startups handling sensitive data in fintech, healthcare, and enterprise SaaS—confidentiality and security are non-negotiable.
How quickly can you start?
Typically within 1-2 weeks. After our initial consultation, I can often begin strategic work immediately while we finalize contracts. For urgent situations (CTO departure, critical launch), I've started within 48 hours.
What if we're not a fit after the first month?
All engagements are month-to-month with 15-day notice. If I'm not delivering value, you can end the engagement with no long-term commitment. That said, most clients extend beyond the initial engagement because I focus on tangible outcomes from day one.
Do you work with remote teams?
Yes, I specialize in remote and distributed teams. I've managed engineering teams across Argentina, Uruguay, Colombia, Mexico, USA, Australia and Eastern Europe. I'm comfortable with async communication, different time zones, and building strong remote cultures.
What's your experience with GenAI and AI technologies?
I have deep expertise in implementing GenAI solutions, including RAG pipelines, agentic workflows, and AI integration strategies. I help companies leverage AI to automate processes, enhance decision-making, and create innovative customer experiences—without wasting money on POCs that never ship.