Mariana Cely Garzón

As a freelance Data and Automation Analyst, I design data extraction, cleaning, and transformation processes with Python and advanced SQL. I also develop workflow automation and recurring reports to support business decision-making.

I build Power BI dashboards and metrics in collaboration with internal clients and multidisciplinary teams, and document technical processes while managing databases with Git and GitHub version control.

In my data science projects, I developed a machine learning model to identify sports betting platform users at risk of leaving. I connected its predictions to a retention strategy and presented findings and proposed actions.

I also worked on predictive modeling projects in telecommunications and NFL draft prediction. My background includes a B.Sc. in Pure Mathematics from Universidad Pedagógica y Tecnológica de Colombia (UPTC) and a Diploma in Python Programming from Pontificia Universidad Javeriana Cali.