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diegoavelez/README.md

Hi My name is Diego Vélez

🎓 System Engineer & Data Scientist | 📊 AI Engineer in Progress

System Engineer and Data Scientist with a background in marketing, international cooperation, and project management.
I help teams unlock business value through data analysis, machine learning, and AI-driven solutions.

I’m currently building a portfolio of end-to-end AI projects that combine technical depth and strategic insight.

🚀 Latest Project: Demand Forecasting & Customer Insights

🎯 A complete ML pipeline to predict monthly sales using real data
📈 Final model (XGBoost) reached 0.77 R² accuracy
🔍 Includes EDA, feature engineering, model tuning, and business recommendations

👉 View the project on GitHub

💼 What I Bring

  • Agile methodologies, model evaluation, ML workflows
  • Python, MySQL, Google Cloud, Tableau, Power BI
  • Experience in both public sector innovation and international cooperation
  • Strong communication, empathy, and problem-solving mindset

🧠 Currently Learning

Deep Learning · NLP · AI product deployment

🌍 Based in

Medellín, Colombia

✉️ Let's Connect

📧 d.alejandrovelez@gmail.com
🔗 LinkedIn • GitHub

⚡ Fun Fact: I love music, books, and analyzing data behind cultural trends 🎧📚📊

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  1. review-insights-sentiment review-insights-sentiment Public

    End-to-end sentiment classification project using Amazon reviews. Includes TF-IDF + Logistic Regression and fine-tuned DistilBERT. Trained, evaluated, and ready for deployment. 📊🤖

    Jupyter Notebook

  2. Data-Analytics---Siniestros-Viales Data-Analytics---Siniestros-Viales Public

    Proyecto Individual II sobre el análisis de homicidios ocurridos en siniestros viales en la Ciudad Autónoma de Buenos Aires. El proyecto desarrolla métricas de indicadores de desempeño con la infor…

    Python

  3. Sales-Forecasting-Superstore Sales-Forecasting-Superstore Public

    📊 Sales Forecasting & Customer Insights A full-cycle data science project to analyze sales behavior and build a machine learning model to forecast monthly demand by product line. Includes data clea…

    Jupyter Notebook

  4. Joaqrz/Proyecto_Final_Yelp Joaqrz/Proyecto_Final_Yelp Public

    Proyecto final grupal de la carrera de Data Science en Henry

    Jupyter Notebook 2

  5. Delivery-Duration-Prediction---DoorDash Delivery-Duration-Prediction---DoorDash Public

    Python