AI engineer with business fluency
I'm César García Cabeza, a senior freelance AI consultant. I come from data science and now build agentic AI that companies actually use. No hype, no empty promises: engineering tied to outcomes.
César García Cabeza works at the uncommon overlap between serious engineering and business language. He understands the code, and he understands what moves a leadership team.
Andorra is his base and his trust anchor. He works remotely with teams in any time zone, but he operates from a stable, serious framework.

Who is César García Cabeza?
César García Cabeza is a senior freelance AI consultant based in Andorra. He designs and builds production-ready artificial-intelligence systems —private AI agents / private ChatGPT (Enclave), automations and RAG— for SMEs and tech companies. He combines five years of data science at Gauss & Neumann with two MScs (AI and Data Science & Cloud) and a started PhD in AI. He operates under his Smart Growth brand, remotely worldwide and in person in Andorra.
What he has built
- 5 years
Data Scientist · Gauss & Neumann
Data science, analytics and engineering across SEM and digital marketing. Close to the business, working shoulder to shoulder with CMOs, VPs and stakeholders to turn data into decisions.
- 2026 — now
Growth Systems & AI Engineer · Lodgify · Contract
Contract advisory and implementation, through his Smart Growth brand, to optimize Lodgify's growth systems and processes. Remote, building production-ready agents, automations and integrations.
- AI Copywriting Agent: a scalable system to generate website copy across pages and languages for a full rebrand (−24% time, −20% cost).
- Affiliate Prospecting System: an automated multi-channel workflow to identify, filter, score and reach out to new affiliate partners based on tailored ICPs.
- Email Campaign Copywriting Automation: turns campaign strategy into structured inputs (spreadsheet specs) and auto-generates context-aware, multi-language sequences ready for HubSpot.
- Online Event Platform + CRM: a live-streaming platform integrated with HubSpot, tracking attendee lifecycle and engagement signals (chat, CTA clicks) via the Marketing Events and Custom Events APIs, synced for lead scoring, segmentation and attribution.
- 2026 — now
Independent Operator · Smart Growth
Works independently under his Smart Growth brand: building AI systems, agents and growth automations for tech companies. This is exactly what this site is about.
From research to building
MSc in Artificial Intelligence
MSc in Data Science & Cloud Engineering
PhD in AI (started)
He started a PhD in AI and chose to build rather than stay in research.
Andorra as anchor, the world as reach
Based in Andorra
A stable, serious framework. A jurisdiction that inspires trust for long-term work.
Fully remote
He collaborates with teams in any time zone, with clear communication and frequent delivery.
- Inteligencia Artificial
- Agentes de IA
- Model Context Protocol (MCP)
- Retrieval-Augmented Generation (RAG)
- Automatización de procesos
- Large Language Models (LLM)
Got a system to build?
If your company wants AI that actually works, now is the time. Book a call or reach out to César García Cabeza directly.