Fractional CTO for Startups & SMEs in the USA & LATAM

Specializing in GenAI, SaaS, and cloud solutions. Helping teams scale quickly and ship faster.

20+
Years Exp.
30+
Companies
USA
& LATAM
Book a Free Consultation

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

Get strategic leadership and hands-on expertise at 30-50% of a full-time CTO salary—with no equity dilution or long-term commitment.

Tap Into 25+ Years of Cross-Industry Experience

Leverage proven solutions from fintech, SaaS, e-commerce, and enterprise—avoiding costly mistakes your first-time CTO would make.

Services Offered

MVP Development

Ship in 8 weeks, not 8 months. Lean product development focused on product-market fit, not perfect architecture.

GenAI Solutions

Build AI features that actually work. Stop wasting money on POCs that never ship—get RAG pipelines and agentic workflows that drive real business value.

Technical Advisory

Avoid the $200K technical debt trap. Strategic guidance that prevents costly rewrites and helps you make the right technology choices from day one.

Digital Transformation

Modernize your tech stack and processes while keeping the business running smoothly. No downtime, no chaos.

Scalable Architecture Design

Build architectures that grow with your business. Handle 10x traffic without 10x costs or complexity.

Tech Upgrades & System Optimization

Optimize systems to run faster and cheaper. Typical clients see 40% cost reduction with better uptime and performance.

Team Leadership & Mentorship

Engineering leadership that scales your team's output without micromanagement. Develop senior talent, not just hire bodies.

Cloud Infrastructure Scaling

Handle 10x growth without infrastructure panic. Cloud systems that scale automatically—no 3am alerts, no emergency meetings.

Performance Optimization

Eliminate bottlenecks and improve user experience. Reduce infrastructure costs while improving application speed and reliability.

Investment Levels

Transparent pricing that scales with your needs—from initial assessment to ongoing leadership.

Tech Assessment

$2,500

One-time deep dive into your tech stack, architecture, and team processes.

  • Complete tech stack review
  • Technical debt assessment
  • 90-day technology roadmap
  • Detailed report & recommendations

Advisory Engagement

$5K-8K/month

Strategic guidance and technical advisory for your leadership team.

  • Weekly strategy sessions
  • Architecture reviews
  • Technology decision support
  • Async communication & support
MOST POPULAR

Embedded Leadership

$10K-15K/month

Hands-on CTO work integrated directly with your team.

  • Everything in Advisory, plus...
  • Direct team leadership
  • Hands-on implementation
  • Sprint planning & execution

All engagements start with a free consultation to ensure the right fit for your needs.

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 Rosario 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, and avoid leaky retention—without the burden of over-engineering and processes that slow them down.

Ezequiel Actis Grosso

Ezequiel Actis Grosso

Fractional CTO - AI, SaaS & Cloud

Lean Studio | Reforge

View Profile
  • Track record of successful digital transformations
  • Deep expertise in cloud and product development
  • Proficient in DevOps practices and GenAI

What People Say

"I have met talented people over my 20 years in the profession, but no one like Ezequiel. His excellent technical and creative skills are enhanced by his ability to focus on finding and executing real business-oriented solutions.

His high level of commitment, aptitude to lead interdisciplinary teams, along with his kindness and patience to communicate with honesty and transparency, make him a standout professional."

Gustavo Ruscitto

VP of Engineering @Herta

"I am truly grateful to have had the opportunity to work alongside Eze. He has a unique ability to inspire and motivate the team, fostering a collaborative work environment. His open coaching style was instrumental in enhancing the effectiveness and morale of the team."

"Furthermore, he possesses a deep understanding of the industry and technical expertise that is second to none."

Maria de los Angeles Achaga

People & Culture Lead @Bitso

"Having Eze as a mentor was truly inspiring. He is a technical genius with an experience that shines through in the exceptional results he delivers. He has an innate ability to assertively address team issues and tackle challenges head-on.

He accomplished amazing things with relatively few people on the teams, and had a super positive impact on all the developers who worked with him."

Aylen Presentado

CTO @Prendo

"I hired Ezequiel at the beginning of 2012 and he built an engineering team around his leadership. He is very capable technically and has shown true leadership skills. I would recommend him for any position requiring commitment, accuracy and cross team communication and collaboration.

He is a very pleasant person to work with and he acts as a real gentleman."

Luca Massasso

Founder @BizBrain

"Ezequiel has a commitment, responsibility, and adaptability that I have seen in very few professionals. His technical capabilities, learning ability, and personality make Ezequiel an excellent worker who can achieve any goal he sets before him."

Deborah Pandra

Head of Digital Technologies @gA (acquired by Globant)

"Ezequiel is a person in search of creative solutions, interested in researching new technologies and putting the acquired knowledge to use. Committed and responsible, with a high capacity for abstraction, used to materialize solutions that meet the client's needs."

Alejandra Villaseñor

Director of Digital Transformation @Banco del Bajio

Is This You?

If any of these situations sound familiar, we should talk:

Just raised funding and need to scale engineering without bloating headcount?

Your CTO just left and you need senior leadership tomorrow, not in 3 months?

Stuck in analysis paralysis—build in-house, outsource, or somewhere in between?

Burned by consultants who delivered reports instead of working software?

Competitors are launching AI features while you're still evaluating vendors?

Engineering team is shipping slower despite adding more developers?

If you checked even one box, let's talk.

Book Your Free Consultation

The 5-Day Tech Stack Audit

Get clarity on your technical direction in less than a week.

$2,500

Fixed price • 5 business days

What You Get

  • Architecture Review Document

    Deep dive into your current architecture, identifying bottlenecks and risks

  • Technical Debt Assessment

    Prioritized list of what's slowing you down and costing you money

  • 90-Day Technology Roadmap

    Concrete action plan with priorities, timeline, and resource needs

  • Recorded Video Walkthrough

    30-minute video explaining findings and recommendations

  • 1-Hour Q&A Session

    Live session to discuss findings and answer your questions

Perfect For

  • Founders preparing for fundraising who need technical validation
  • CTOs who just joined and need to understand what they inherited
  • Scale-ups experiencing growing pains with current architecture
  • Companies planning major migrations (cloud, architecture, tech stack)
  • Teams shipping slower despite adding more developers

"This assessment saved us 6 months of going down the wrong path. Worth every penny."

— VP Engineering, FinTech Startup

Schedule Your 5-Day Audit Connect on LinkedIn

No obligation to continue. Many clients use this as a standalone engagement.

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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.