👋 Hi, I’m Gustavo Martinez

Data Analyst & Mathematician

I turn complex datasets into clear business insights through exploratory data analysis, predictive modeling, and interactive dashboards. I focus on uncovering patterns that drive strategic decisions and I’m passionate about building data-driven solutions.

🚀 Featured Projects

Logistics Operations Analysis with SQL

I built a comprehensive relational database analysis of a transportation and logistics company using SQLite. This project explores customer behavior, product performance, route efficiency, and warehouse operations through advanced SQL queries and visualizations. Key analyses include identifying top-revenue products, most valuable customers, route distance impact on revenue, warehouse order processing, and operational trends over time.

Database diagram

Technologies: SQL, SQLite, Python, Jupyter Notebook, dbdiagram

🔗 View repository on GitHub

Global Music Streaming Analytics (Excel Dashboard)

I built an Excel dashboard using data from 50,000 music streaming sessions to explore genres, countries, and platforms, with KPIs for listening time, premium users, and song repetition. It includes interactive slicers and visualizations for comprehensive insights.

Dashboard demo

Technologies: Microsoft Excel, Power Query, Pivot Tables, Slicers, Git, GitHub, Kaggle

🔗 View repository on GitHub

Academic Performance — Analysis & Prediction

I analyzed a student dataset to discover the factors that most influence academic performance. I used exploratory data analysis techniques and machine learning models to predict student outcomes from educational data.

Project chart example

Technologies: Python, Pandas, Scikit-learn, Matplotlib, Kaggle

🔗 View full notebook on Kaggle

UPTC Editorial Database Scraper & Search Tool

I developed a tool that automates data collection from the UPTC Editorial using web scraping techniques. The system extracts relevant information from books and publications, stores the data in a NoSQL database, and provides a user-friendly search interface.

Search tool demo

Technologies: Python, BeautifulSoup, MongoDB, Gradio, LangChain

🔗 View repository on GitHub

🛠️ Skills

Languages: Python, R, SQL, MongoDB
Machine Learning: Scikit-learn, Feature-engine, TensorFlow
Visualization: Matplotlib, Seaborn, Plotly, Tableau
Tools: Excel, Conda, Git, GitHub, Docker

🎓 Education & Certifications

Certificate	Description
	Complete Linear Algebra course — RStudio, Frogames
	Complete Descriptive Statistics course — RStudio, Frogames
	Probability for Machine Learning and Big Data — Frogames
	Complete Python course, from A to Z — Frogames
	Complete R for Data Science with Tidyverse course — Frogames
	Complete Machine Learning: Data Science in Python course — Frogames
	Diploma in Data Science — CIEC, 2024