I work at the intersection of product, instructional design, and prompt & context engineering. My path started in frontend. I spent five years building Platzi’s product surface before moving into AI engineering full-time.
I design placement assessments, gamified challenges embedded in videos and exams, and skill extraction pipelines, with prompt architecture, evaluation workflows in Langfuse, and structured JSON output at scale. I also led Platzi’s migration to a Next.js monorepo and shipped Google SSO (67% of logins).
I speak at PlatziConf, deliver talks to corporate leaders on LLMs and AI literacy, and build one of the few Spanish-language technical content brands focused on applied LLM work. I believe natural language is becoming the next abstraction layer above traditional programming. I want to help Spanish-speaking developers cross into it.
Case study
An LLM pipeline that auto-generates gamified, interactive learning exercises and embeds them at the right moments in videos and formal exams.
Interactive checkpoints had to be authored by hand, per video. That does not scale across thousands of hours of content: authoring effort grows with every class, quality drifts between authors, and students mostly watched passive video with few comprehension checks.
Early outputs were too easy. Added a cognitive-demand hierarchy and constraints across base and type-specific prompts, plus an audit pass to catch trivial exercises.
98%
Completion rate in video classes with Challenges
100%
Platzi courses with Challenges in every class
Live
Interactive questions in formal exams
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Frontend engineer turned prompt engineer, still shipping product. Here’s where I’ve built systems that reach real students, not just impressive demos.
Full time
Design and operate LLM-powered educational systems: diagnostic placement assessments, gamified Challenges inside videos and exams, skill extraction from course transcripts, and challenge positioning in VTT transcripts with LLM-as-judge evaluation. Established prompt evaluation workflows in Langfuse with structured JSON schemas and quality metrics.
Full time
Led migration from micro-frontends to a Next.js 13 monorepo. Shipped Google SSO Login (67% of platform logins), a checkout redesign that lifted mobile conversion +1.7%, and Redeemable Codes & Coupons for HP/Lenovo partnerships (50K+ codes). Taught a Platzi course on responsive mobile web development.
Full time
Designed and built software services, mobile apps, and UIs from concept to production for a bulk-purchasing platform. Stack: Node.js, React, React Native, AWS, Serverless Framework.
Speaker at PlatziConf on AI and applied LLM work. Creator of @musarte.dev: technical content on AI, prompt engineering, and web development for Spanish-speaking developers.
I'm a Senior Software Engineer at Platzi, Latin America's largest tech education platform. I design and operate the LLM-powered systems that generate and evaluate the educational content students interact with every day: placement tests, interactive challenges, self-assessments, exam questions, and the skill taxonomy underneath them all.
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My path to AI engineering came through frontend. I spent five years building Platzi’s product surface (micro-frontend architecture, checkout, growth, B2B) before moving into prompt and context engineering full-time. That product foundation is what lets me build AI systems that actually serve real students, not just impressive demos. Outside of work, I teach AI, prompt engineering, and web development in Spanish as @musarte.dev on Instagram.
import Developer from "./Developer";
class Mus extends Developer {
constructor() {
super();
this.role = "Senior Software Engineer";
this.company = "Platzi";
this.stack = ["Python", "TypeScript", "Langfuse"];
this.teachesAs = "@musarte.dev";
}
buildChallenge(course) {
return this.llm.generate({ course, type: "mcq" });
}
shareWhatILearn(topic) {
return this.instagram.post(topic);
}
}
export default new Mus();People started to call me Mus more than 15 years ago!
Speaker at PlatziConf on AI and applied LLM work, and to corporate leaders on LLMs, RAG, and AI literacy.
Creator of @musarte.dev on Instagram, one of the few Spanish-language technical brands focused on applied LLM work.