Software Architect & Fractional CTO

Senior architecture. AI speed.

I help startups ship software 2-3x faster using a methodology I've refined over 15+ years: senior architectural expertise combined with AI-augmented development. You get the output of a team with the judgment of a veteran.

Let's Build Something My Story

 const jonas = { 

  experience: '15+ years',

  roles: ['CTO', 'Architect', 'Founder'],

  methodology: 'AI-augmented',

  delivery: '2-3x faster' 
 }; 

The Journey

From the field to the codebase.

7 Years Pro Football

I played professional football for 7 years. The field taught me things no codebase ever could: resilience, the value of practice, and how to give everything you have even when the odds aren't in your favor.

At 41, I still play every week. Some things you don't quit.

15+ Years in Tech

I became a Software Engineer because I wanted to make video games. I stayed because I fell in love with solving complex problems. Over the years, I've been a developer, an architect, a CTO, and a founder.

The more complex the problem, the more interesting.

Founder from Day 1

I started my first company the day after graduation—before I had a job, I had a business. It failed, then it didn't. That's how you learn. Today I understand both sides: the code and the business.

Venezuela → Mexico. Building ever since.

Now: AI-Augmented

Today I combine 15+ years of experience with AI-augmented development—a methodology that lets me deliver 2-3x faster without cutting corners. I review every line. I architect for scale. And I don't disappear after deployment.

Senior Software Engineer @ Versapay

Jonas Graterol in action on the football field

Still in the game

Jonas Graterol directing play on the field

Leading the play

The discipline of an athlete. The mind of an architect.

What I Do

Services

Software Architecture

Build scalable systems from day one. I've seen what works and what breaks at scale. Get 15+ years of battle-tested patterns without the expensive rewrites.

AI-Augmented Development

Ship 2-3x faster while maintaining quality. My methodology combines cutting-edge AI tools with disciplined review. Every line gets senior-level attention.

Fractional CTO

CTO-level leadership without full-time costs. Navigate technical decisions, align engineering with business goals, and get investor-grade oversight.

Technical Consulting

Solve critical challenges with senior expertise on demand. Architecture reviews, tech selection, team scaling—immediate impact, no long-term commitment.

What I Believe

Principles I work by.

Business first, code second

Validate the business model before writing code. I've seen too many great products fail because nobody validated the market first.

Complexity is interesting

The harder the problem, the more excited I get. I don't shy away from messy codebases or impossible deadlines—I thrive there.

Always design for scale

Even when you're small. Horizontal or vertical—your architecture should be ready for what's next, not just what's now.

Build and sell

Great products fail without great distribution. I help you build something worth selling— and understand why visibility matters as much as quality.

Your success is my success

I'm not a vendor, I'm a partner. I always give a plus, think outside the box, and genuinely want to see the people who trust me win.

Global mindset

Venezuela → Canada → Mexico. Three countries, three cultures, and clients across US, LATAM, and Europe. Flexibility is built in.

The short version.

I'm Jonas—a software architect with 15+ years building systems that scale. Ex-CTO, ex-professional footballer, and still chasing complex problems at 41.

I combine battle-tested experience with AI-augmented development to help startups ship 2-3x faster. Based in Mexico, working globally.

15+ years in software—developer, architect, CTO, founder

7 years professional football—still playing at 41

Current: Senior Software Engineer @ Versapay

Have a complex problem? Let's talk.

I don't just write code—I solve problems. Whether you need architecture guidance, faster delivery, or a technical partner who gets it, let's figure out how I can help.

Book a Free 30-min Call