Co-Founder & Chief AI Officer · Subaxa
Carlos Luis Rojas Aragonés
Technology Entrepreneur
Co-Founder & Chief AI Officer at Subaxa. Co-founder and board member at Golabs. Building AI-native products across the Americas.
- 16+Years in technology
- 100+Engineers scaled
- 30%Revenue from AI division
- F500Enterprise delivery
About
I build technology organizations and AI-native products that ship.
From shipping product as an engineer to co-founding Golabs, scaling it past 100 engineers, and founding Subaxa: a trajectory across delivery, leadership, and AI-native entrepreneurship.
Ventures
Companies I’ve co-founded
Golabs, the nearshore company I built and later took to a majority sale, and Subaxa, the AI-native proptech company I’m building now.
Expertise
Where I create leverage
Strategy, systems, and teams: the intersection where technology executives earn trust.
AI product & strategy
Designing AI-native products and organizations, from GenAI initiatives to revenue-bearing AI services, with clear business outcomes.
Cloud-native platforms
Architecting and scaling systems on AWS: resilient web platforms, data pipelines, and production-ready cloud foundations.
Org design & talent
Hiring pipelines, career paths, and leadership layers that let engineering organizations grow past 100 people without collapsing.
Nearshore delivery
Distributed teams across LATAM and the US delivering mission-critical software for Fortune 500 and growth-stage companies.
Stack
What I build with
The technologies behind the teams and products above. Most of them are also the subject of a talk or workshop I have given.
AI & agents
- LLM agents
- Multi-agent systems
- RAG pipelines
- Vector databases
- Prompt & context engineering
Cloud & infrastructure
- AWS
- Serverless & FaaS
- Docker & Compose
- Terraform / IaC
- Linux & systemd
APIs & distributed systems
- REST API design
- GraphQL & Apollo
- Message queues
- Event-driven architecture
- SSR / SSG / CSR
Languages & runtimes
- Python
- JavaScript & TypeScript
- Node.js
- Ruby
- PHP / Laravel
Speaking
Talks for builders and leaders
Selected technology and leadership talks, from multi-agent systems and RAG to cloud architecture and engineering craft.
Agentic AI
A practical introduction to AI agents and multi-agent systems, using a restaurant analogy to make models, prompts, and collaboration concrete for engineering organizations.
RAG Applications
Retrieval-augmented generation from concepts to working demos: tools, languages, vector databases, frameworks, and model choices for building RAG apps.
The Second Brain
How to build a personal knowledge system with AI: externalize thinking, give models the context they need, and make assistants part of daily work.
Data-Driven Management
Data-driven decision making for engineering leaders: why measurement matters, and how DDDM shows up in practice on delivery teams.
Serverless Architecture
What serverless and FaaS really mean: core concepts, trade-offs, providers, and cost models for event-driven systems.
Blog
Notes on technology & leadership
Is Your AI Design Already Getting Old?
AI makes polished design easier to produce. It also makes familiar ideas easier to repeat. What happens when your new identity already looks like everyone else's?
Los datos de criminalidad en Costa Rica cuentan dos historias
Analicé las estadísticas policiales abiertas de 2015 a septiembre de 2026: bajaron los registros de asaltos, robos y hurtos, mientras aumentaron los de homicidio.
How to Switch LLM Models Without Breaking Your Agents
Build an internal benchmark, measure Intelligence per Dollar, and make every model upgrade a decision you can test and reverse.
Contact
Let’s talk
For speaking invitations, founder conversations, or executive opportunities, reach me on LinkedIn.