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Jota1221-coder/README.md

Hi, I'm Joaquin Rao 👋

I'm a Data Science student based in Buenos Aires, Argentina, currently focused on building real-world projects that turn raw data into useful decisions. I'm at an early stage of my career, but I move fast, I build things, and I take every project seriously.

I believe that knowing how to work with AI tools is a key skill for this era — so I use them as part of my workflow, not as a shortcut.


Soy estudiante de Ciencia de Datos en Buenos Aires, Argentina. Me enfoco en construir proyectos reales que conviertan datos en decisiones concretas. Estoy comenzando mi carrera profesional, pero avanzo rápido, construyo cosas reales y me tomo cada proyecto en serio.

Creo que saber trabajar con herramientas de IA es una habilidad clave para esta época — las uso como parte de mi flujo de trabajo, no como atajo.


🛠️ Tech Stack

Data & Analytics

Python SQL Pandas Power BI Excel Power Query

Web Development

Next.js TypeScript PostgreSQL Prisma Tailwind

AI Tools

Claude Gemini


🌟 Featured Projects

Web app for amateur astronomers: finds the best stargazing spots in Buenos Aires Province combining real light pollution data (NASA VIIRS satellite), live weather forecasting, moon phase calculation, and a scoring model that tells you whether tonight is a good night to observe — and why.

What makes it interesting: the scoring engine is a pure function with 23 tests, the astronomy calculations run locally (no external API), and the light pollution data was processed from raw satellite imagery.

Stack: Next.js 16 · TypeScript · Prisma · PostgreSQL (Neon) · Leaflet · astronomy-engine · Open-Meteo


Full-stack web app with real-time availability check, admin panel with auth, rate limiting and antispam honeypot.

Stack: Next.js 14 · TypeScript · Prisma · Tailwind · Zod


🚀 What I'm working on

  • 🌌 Deploying StarMap BA — adding user reviews, photos, and community-submitted spots
  • 📊 Building a data dashboard with real business metrics
  • 📚 Expanding into machine learning and predictive modeling

📫 Get in touch

LinkedIn Email


Currently open to junior data analyst opportunities and freelance projects.

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