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Software, data & artificial intelligence

Software that takes work off your hands

AI agents trained on your company's own data, dashboards built from your own numbers, custom systems and integrations. Python, data and cloud — in production, not in a slide deck.

What I can do Let's talk
Available for projects · Buenos Aires (GMT-3) · remote

What I do

Five areas, one goal: your business stops losing time and money on something that can be automated or measured.

  1. 01

    Automation & AI

    A bot that handles WhatsApp using your business's real data, and manual processes that start running on their own.

  2. 02

    Data & dashboards

    Your spreadsheets and systems turned into a dashboard that answers questions: what sells, what it costs, where the money leaks.

  3. 03

    Custom systems & APIs

    The internal software your operation needs, and the integrations that get your systems talking to each other.

  4. 04

    Cloud & infrastructure

    Something that always runs, doesn't depend on a machine staying on, and can be rolled back if something breaks.

  5. 05

    Websites & web presence

    Fast, measurable websites. The one you're looking at scores 95+ on Google's own public metrics, verifiable on the spot.

See the technical detail →

Work

Real work, with the number it moved.

Cost-to-serve & profitability engine

In production since 2021 2021

An ETL engine that pulls scattered data from a company's different systems (sales, logistics, operations) and organizes it into a single schema. From that, it builds reports showing what it actually costs to serve each customer, product or channel — and how much profit each one leaves.

How the data flows
  1. Extract
  2. Consolidate
  3. Allocate
  4. Report
  • Python
  • Django REST Framework
  • Pandas
  • Databricks
  • PostgreSQL
  • Azure
No public link

Prospecting demo factory

Actively in development 2026

A Python pipeline that discovers trade businesses via Google Places, audits their current site with Google's own public APIs (PageSpeed, Chrome UX Report), generates a demo from the business's real data, and publishes it before first contact.

How the data flows
  1. Discover
  2. Score
  3. Generate
  4. Deploy
  5. Contact
  6. Outreach

Result ~400 automated tests, 6 chained stages, zero external dependencies in each generated site

  • Python
  • FastAPI
  • PostgreSQL
  • Jinja2
  • Cloudflare Pages
No public link

Fluidez

Personal project 2025

A PWA that trains spoken fluency in ~10-minute sessions: lexical retrieval, speaking speed, vocabulary precision, and confidence under time pressure.

  • React
  • TypeScript
  • Vite
  • IndexedDB
  • Web Speech API
Source code ↗

BankAnalytics

Personal project 2025

A local dashboard that turns exported bank statements into spend and savings insights.

  • Python
  • Pandas
No public link

QuantBot-AR

Personal project 2025

An algorithmic trading bot, plus an AI bot that monitors market news.

  • Python
  • Databricks
No public link

selfcheck

Personal project 2025

A tool that audits your own public digital footprint.

  • Python
No public link
Juan Cruz Eiriz

About me

I build software so your business gets more customers, earns more, and looks professional online: sites that load fast and turn visits into calls, systems that organize your information so you can decide faster, and automations that save hours of repetitive work every week. You don't have to take my word for it — I measure every result with the same free Google tools anyone can open and check.

Certifications

Most link to a public verification; the rest are available on request.

Résumé

The full detail, in your language.

Download CV (Spanish) Download CV (English)

Let's talk

I reply the same day.