Line drawing of San Francisco, Santiago de Chile and Mexico City

San Francisco · Santiago · Mexico City

From AI prototypeto production.

Full-stack engineer and tech lead. I take products from 0 to 1 — like Companio, which did $200K+ in its launch week.

Highlights

Proof over promises.

Engraving of a charging bull

$100K in 2 hours

Companio launch · $200K+ in week one

Engraving of a laurel wreath around a trophy

1st place in 36 hours

Platanus Hack 2025 · Human Enhancement track

Engraving of the Palo Alto garage where Silicon Valley began

50 days in Silicon Valley

The Bridge 2026 · Pitched at UC Berkeley

Selected work

Things I've shipped.

2026 · Tech Lead · Afluence

Companio

Investment app for Pepe Nieves and his community. I led the project from build to launch: $100K in the first 2 hours and $200K+ in week one, with 1K+ annual subscribers.

2026 · Tech Lead · Launching soon

Nuritiva

AI nutrition coach for one of Hotmart's top 30 creators: a gamified daily-habits path, recipes that adapt to each user's plan, and Nuri, an in-app coach you can chat with.

Recordai

2025 · Hackathon · 1st place

Recordai

Real-time face recognition and tracking from a live camera feed. We tuned embedding matching (cosine similarity + multi-sample averaging) to cut false positives. Built in 36 hours.

  • Python
  • Computer Vision
  • Face Recognition
Zpend AI

2025 · Founder · Sunset

Zpend AI

AI personal-finance assistant that lived on WhatsApp. Agent pipelines turned receipts, PDFs, voice notes and text into structured expenses. Started with friends in college; I later rebuilt the concept for a content creator.

  • Python
  • LangChain
  • WhatsApp API
  • AI Agents
Mecanu

2021–2023 · Co-founder · Frontend

Mecanu

Built the website and MVP for a car-service startup. Iterating on the UX took us from 4 bookings a month to 13 a day in peak season.

  • Vue
  • Firebase
HD Conta

2025 · Freelance

HD Conta

Client-facing website and an internal platform for an accounting firm, with auth and tools that automate staff reports.

  • HTML
  • CSS
  • JavaScript

Experience

Where I've built.

  1. May 2026 — Now

    Tech Lead (freelance) · Afluence

    Leading product builds for creator-led apps, from scoping to launch. Shipped Companio with Pepe Nieves; a nutrition app for a top Hotmart creator is next.

  2. 2025

    Founder · Zpend AI

    College side project with friends: an AI finance assistant on WhatsApp. Now sunset.

  3. 2025

    Freelance Full-Stack Engineer · HD Conta

    Website and internal platform with auth and automated staff reports.

  4. 2024 — 2025

    Full-Stack & AI Engineer · Severa

    Prototyped and demoed AI agents for insurance and healthcare clients — including a website-to-agent generator — on a multi-tenant architecture. Node.js/React plus Python.

  5. 2021 — 2023

    Co-founder & Frontend · Mecanu

    Website and MVP. Grew from 4 bookings a month to 13 a day in peak season.

Stack

What I ship with.

AI reshuffles the toolbox every few months. These are the ones I reach for today.

Languages

  • TypeScript
  • Python
  • JavaScript

Web

  • Next.js
  • React
  • Tailwind CSS

Mobile

  • React Native
  • Expo
  • Capacitor

Backend & queues

  • Node.js
  • Redis
  • BullMQ

AI

  • LangChain
  • AI agents
  • Multimodal pipelines

Infra

  • Railway
  • Vercel
  • GitHub

Tools

  • Claude Code
  • Cursor
  • Figma

+ whatever the project calls for.

About

Builder first.

I'm Diego, a full-stack engineer focused on AI prototyping and new kinds of interfaces. I like taking raw model capabilities and turning them into products people actually use.

Right now I'm a freelance tech lead at Afluence, building apps for creators and their audiences. Before that: a startup with friends, AI agents at Severa, and a 36-hour hackathon win.

Education

Pontificia Universidad Católica de Chile

Engineering · Dropout

#1 university in Latin America — QS 2026

Contact

Building something for your audience?

I'm open to freelance projects — from an MVP to a full launch. Tell me what you're building.