ABOUT
Agustín Avellaneda

Agustín Avellaneda

Independent Product Engineer

PM and Fullstack Developer, founder of Excelso. Catamarca, Argentina. I started far from where these stories are supposed to start: with a Mining Technician degree and months of field work in Salar del Hombre Muerto. None of that sounds like a developer. And yet that's exactly where I learned what I use every day: that a complex system isn't understood by looking at one piece, but at the relationships between all of them. I solve real problems with simple tools. I'm not interested in technology for technology's sake; I care about what changes in someone's life when the product works. I'm a PM because I need to organize. I'm a developer because I need to execute what I organize.

View work
What drives me
Solving real problems with simple tools. I'm not interested in technology for technology's sake; I care about what changes in someone's life when the product works.
How I work
Discovery before specification, specification before implementation, review before closing. Direct work with founders and product leads, no intermediate PM. Short meetings, clear deliverables, constant iteration.
What I'm looking for
Interesting problems, teams that value clarity, and products where technical quality matters because the product matters.
2025 — Present
Founder, Developer & PM
Jul 2026 — Present
Fullstack Developer SSR
Jan 2026 - Present
Jul 2025 — Ago 2026
Front-end Developer SSR
Sep 2024 — Jan 2025
Web Dev Project Manager
IcarisTech
Apr 2024 - Sep 2024
Product Owner & IT PM
Ago 2023 — Mar 2024
Founder, PM & Fullstack Dev
Apr 2018 — Dic 2023
Multimedia Editor & Dev
Jan 2023 - May 2023
Front-End Developer
Advance Valley
TypeScript
React
Next.js
Astro
Node.js
Express
Fastify
SQL
NoSQL
MongoDB
PostgreSQL
SQLite
Tailwind CSS
Go
Lexis
Three.js
Python
LLMs
Agents
RAG
Context Engineering
Automation
Open Source
Product Management
Agile / Scrum
Figma
Git
Let's talk?

If you have an idea, a project, or just want to chat about technology, write me.