AI Engineer · Head of AI Creative Systems & Production
Eduardo Javier 
Castellano Rosales
I design agentic AI systems, build AI products, and produce with them: ads, content, documents, sites, music, film, animation and games.
- AI Engineer
- Agentic AI systems
- AI product builder
- Creative technologist
- Multidisciplinary producer
I build and lead AI-native creative production systems that turn creative ideas into high-impact content at scale: more speed, more variants and conversion-focused creative.
From my résumé
~30 min
per piece, from idea to finished creative
3 days → 1.5 days → ~30 min (−99%): from manual, to automated, to AI-powered.
Nescafé · Dove · Levi’s
brands served in a creator-economy environment
Plus production for Sears. Commercial, social, UGC, cinematic and more.
33
AI platforms and models tested in real workflows
Compared for quality, consistency, control, speed and production viability.
10 · 388
sectors and services in the catalog I designed
One production system behind every sector on this site.
01
Production in practice.
AI versions produced at Global Media Review Inc. (La Neta / Elevn) to present the AI content service to brands, alongside the deliverables produced with real people.
02
The system behind the work.
Once the production environment is configured, an AI production agent takes the work from idea to finished creative.
01
Creative idea
Brief and objective: the starting point.
02
AI agent
ChatGPT / Claude: reasoning, planning and agentic intelligence.
03
Production environment
Wireflow and other platforms: capabilities connected to execution.
04
Human review
Validation, judgment and final creative control. Finished, test-ready creative.
AI product builder
Multi-sector AI production platform
I designed and built an AI production platform that serves eleven sectors from one system. The services on this site come from its catalogs.
- An agent engine in Python and a web app in React 19 + TypeScript, with a landing, a client app and an operator console.
- Eleven bilingual (EN/ES) sector sites, each with its own service catalog: units, scope rules and guardrails.
- The work model is part of the product: the client asks, the system proposes, and nothing is delivered until the client approves.
Engineering
What I build with
- LLM agents
- MCP, APIs & webhooks
- Node-based pipelines
- Cloud execution
- Generative specification
- Model evaluation
- Human-in-the-loop QA
- Product engineering
Agents configured with instructions, knowledge, state and tools; node-based pipelines on cloud compute; validation and human approval in the path.
Read the architecture →03
What I can do for you.
388 services in 10 areas, all produced by me with the same system. Every one can be ordered; the price is agreed with you.
No fixed price: tell me what you need and we’ll agree. I deliver fast and in volume.
44 services · 8 groups
Content and ads for products
I make your product stand out.
40 services · 11 groups
Business operations
I keep your business moving.
41 services · 12 groups
Real estate
I present every property as it is, ready to go live.
42 services · 9 groups
Clinics and practices
I help your practice grow.
39 services · 11 groups
Law firms
I prepare your matters. You decide.
36 services · 10 groups
Content creators
You hit record; I turn it into clips ready to post.
39 services · 8 groups
Music
I get your song ready to release.
34 services · 9 groups
Film
I take your film from idea to premiere.
37 services · 11 groups
Animation
I keep your characters true, scene after scene.
36 services · 9 groups
Games
Your game, one milestone at a time.
04
Two ways to work together.
For employers
An AI engineer who also ships the output.
- Agentic production systems, node-based pipelines and model evaluation.
- An AI product built end to end: engine, web app and eleven sector offers.
- Hands-on craft: editing, motion, color, sound and design.
For clients
You set the goal. I deliver the work.
- I propose the scope; you approve before anything starts.
- Versions you compare and adjust on the piece itself.
- Nothing goes out without your approval. AI-made pieces are labeled.
With an account you follow your orders in «My orders». Without one, the form sends it to my email.
Tell me the result you need.
No fixed price: tell me what you need and we’ll agree. I deliver fast and in volume. I reply with a proposal: scope, formats and dates.