Skip to content
View jsmarrero08-ctrl's full-sized avatar

Block or report jsmarrero08-ctrl

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don't include any personal information such as legal names or email addresses. Markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
jsmarrero08-ctrl/README.md

Jonathan Sanchez

Junior Data Professional focused on SQL, Excel reporting, Power BI dashboards, and relational database analysis.

Technical Skills

  • SQL (MySQL, SQL Server)
  • Microsoft Excel (Pivot Tables, Structured Reporting)
  • Power BI (DAX, Data Modeling)
  • Python (Pandas – Data Analysis)
  • Data Validation & Operational Reporting

Featured Projects

SQL Relational Database & Reporting Project

Designed a relational database and developed structured SQL queries using multi-table JOIN operations and GROUP BY aggregations to generate client-level reports.

Amazon Pricing & Discount Analysis (Python)

Performed data cleaning and exploratory analysis to evaluate pricing trends, engineer discount variables, and identify category-level patterns.

Amazon Pricing Dashboard (Power BI)

Built an interactive dashboard using DAX measures and dynamic filtering to analyze pricing and discount performance.

PHP & MySQL Record Management System

Developed a web-based CRUD application connected to a relational database to manage structured records and backend data operations.

Open to entry-level opportunities in Data Analysis, Reporting, Data Support, and Business Intelligence.

Pinned Loading

  1. Amazon-Pricing-Discount-Analysis-Python Amazon-Pricing-Discount-Analysis-Python Public

    A hands-on analysis of Amazon marketplace data to understand pricing patterns and discount trends.

    Jupyter Notebook

  2. amazon-pricing-dashboard amazon-pricing-dashboard Public

    Interactive Power BI dashboard analyzing Amazon pricing trends and discount behavior.

  3. sql-relational-database-project sql-relational-database-project Public

    MySQL relational database project with multi-table joins and grouped reporting queries.

  4. PHP-MySQL-Record-Management-System PHP-MySQL-Record-Management-System Public

    PHP and MySQL CRUD web application demonstrating database connectivity and record management.

    PHP