Based in Buenos Aires · US time zones

Fractional CTO in Argentina

I help founders make the technical decisions that shape the business, then stay close to the code and team to carry them through. I work from Buenos Aires with companies across the US and LATAM.

25+Years Exp.

30+Companies

USA& LATAM

Talk Through Your Situation

In practice

A lender became a fintech platform

Fractional CTO · Lending → Fintech

At MG Group, I led the technical work behind the move from branch-based lending to a digital product. The work covered product, architecture, and delivery:

Break the monolith into cloud services and serverless functions where that reduced release risk.
Change delivery practices until deployments took minutes instead of days; availability reached 99.9%.
Build a mobile app and marketplace that connected car dealerships directly with buyers.
Extend the credit-risk engine so the business could make better lending decisions for people without traditional banking histories.

The company later sold a minority stake to an insurance group.

Read the full case

Across markets

The job changes with the company

CTO · MateBio (UCSF spin-off)

Turning biomedical data into a product

MateBio had biomedical knowledge in Neo4j, but researchers still needed a practical way to explore it. I designed a GraphRAG system that turns natural-language questions into traceable Cypher queries, with entity recognition and confidence scoring. We added graph analytics and deployed across AWS and GCP. Lab researchers can explore biological relationships without learning the graph model first.

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Director of Engineering · Cascade

Making distributed engineering easier to run

At Cascade, I led cross-functional teams that included engineers in Argentina and worked on the global Product Leadership Team. I introduced engineering metrics, built the career framework, and used the Balance Framework to make investment choices visible. That made capacity and delivery trade-offs easier to explain to Sales and CX teams, and to clients across the US, Europe, and the Middle East.

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25 years of practice

Different domains, recurring problems

Lead & Software Architect · gA (acquired by Globant)

At gA, later acquired by Globant, I designed systems for Johnson & Johnson, Grupo Modelo, Banco del Bajío, and Louis Dreyfus, among many others. The domains included banking, lending, trading, and education. The job went beyond system design:

Design service-oriented architectures and business processes that distributed teams could operate.
Hire and develop teams around the problem they had to solve.
Stay close enough to delivery to see whether the design survived production. That work led to repeat engagements.

What I do

Where I get brought in

Most engagements start with one of four problems.

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.

Next step

Bring me the decision you're stuck on

Architecture, an AI product, a team that has slowed down, or a vendor whose work nobody can judge. We can use the first call to work out whether I'm the right person to help.

Book a 30-Minute Call

Related Resources

Digital Transformation

How I led a fintech transformation from traditional lender to modern platform.

CTO for US Startups

Technical leadership from Buenos Aires for startup teams in US time zones.

What is a Fractional CTO?

Part-time tech leadership without full-time cost. Learn when you need one.