IsabellaCuervo

End-to-end repair management for a real estate company: tenants report issues from a mobile app, technicians visit, quote and repair, and administrators track everything from a web dashboard.

• Full repair workflow across 4 roles — tenant, owner, technician and admin — from request to signed completion report
• Three deployed apps: Flutter app for tenants and technicians, React admin dashboard with charts, Spring Boot REST API
• JWT auth with refresh-token rotation and rate limiting; files stored in Supabase Storage; Firebase push notifications

Stack

Java, Spring Boot, Flutter, React, PostgreSQL

Team:

Team of 2 · lead contributor

Year:

2026

Machine learning pipeline built for Ingenio Providencia, a sugar mill in Cali, to forecast cane yield (tons per hectare) and classify sucrose quality, so the mill can decide which lots to harvest first.

• Two models on real historical crop data: yield regression and High / Medium / Low sucrose-quality classification
• The final XGBoost model more than doubled the linear baseline's accuracy for yield (R² 0.19 → 0.46)
• CRISP-DM process with multicollinearity (VIF) analysis, agronomic imputation and confidential data handling

Stack

Python, Scikit-learn, XGBoost, Pandas, Seaborn

Team:

Team of 4 · for Ingenio Providencia

Year:

2026

A pixel-art arcade shooter inspired by Duck Hunt that runs in the browser. Every sprite, sound effect and song is generated in code at runtime — the game ships with zero image or audio files.

• 5 levels with a final boss, weapons shop, power-ups, weather and difficulty settings
• Procedural pixel art drawn with HTML5 Canvas and a synthesizer built on the Web Audio API
• Adaptive music that changes layers with the intensity of the game

Stack

Phaser 3, TypeScript, Vite, HTML5 Canvas, Web Audio API

Team:

Team of 2

Year:

2026

A marketplace that connects people who need home repairs — plumbing, electrical work, painting — with independent technicians, from the first message to the final payment.

• Real payments with Mercado Pago Checkout Pro, including a technician wallet and automatic marketplace commission split
• Real-time chat with typing indicators (Socket.io) and an AI assistant powered by Google Gemini
• Disputes, reviews, favorites, social login and email verification on Supabase Auth

Stack

Flutter, NestJS, Supabase, PostgreSQL, Socket.io, MercadoPago, Gemini AI

Team:

Team of 5 · top contributor

Year:

2026

Online store for a makeup brand: product catalog, cart, checkout and order history for customers, plus an admin area for products, promotions, suppliers and sales.

• Customer store with catalog, brand filters, promotions, cart and order history
• Admin dashboard with sales charts and PDF export
• JWT authentication with role-based access and TOTP two-factor login (QR code)

Stack

Next.js, NestJS, PostgreSQL, TypeScript

Team:

Team of 4

Year:

2026