Cristóbal Elton
Data Portfolio

Data Analytics | Data Engineering | Power BI | SQL | Python

Earthquake Azure Data Pipeline

Earthquake Azure Data Pipeline Cover
Microsoft Fabric PySpark Data Factory Power BI Medallion Architecture

An end-to-end automated data pipeline in Microsoft Fabric transforming earthquake data from the USGS API into actionable insights using PySpark, Data Factory, and Power BI.

Sporting Goods Data Pipeline & Power BI

Python API Integration ETL Pipeline Shopify GraphQL Power BI

A robust end-to-end data pipeline integrating Bsale, Shopify, and marketplace sales into a unified model for advanced sales and inventory analytics in Power BI.

Retail Analytics SQL

Retail SQL Project Cover
SQL Retail Analytics

A structured SQL portfolio focused on solving business problems through sales analysis, segmentation, KPIs and optimization challenges using retail datasets. Includes a README and interactive tabs to browse both documentation and SQL code.

Spotify 2023 Power BI Dashboard

Spotify Dashboard Screenshot
Power BI DAX Python Data Visualization

Interactive dashboard built with Power BI to explore the most streamed songs in 2023. Insights into artist popularity, genres, and musical features.

LEGO Data Analysis

LEGO Project Screenshot
SQL PostgreSQL Python Data Cleaning

SQL-based data cleaning, database optimization, and EDA using a LEGO dataset in PostgreSQL.

London Underground Analysis

London Underground Project Cover
SQL TfL Data Analysis

SQL-based data analysis using Transport for London (TfL) journey data. Includes public transport usage trends and modal comparisons across the city.

HR Analytics Power BI Dashboard

HR Analytics Dashboard
Power BI DAX Data Analysis

Interactive dashboard using HR data to analyze turnover rates, salary distribution, and gender gaps. Built with Power BI and DAX for insightful business decisions.