Luis Carlos Arenas Villamizar

Junior Researcher (Data-Oriented)

Universidad de Medellín

Oct 2025 - Current (9 months)

- Research project focused on EEG signal analysis for the study of brain activity - Processing, cleaning, and segmentation of EEG data to optimize its use in Machine Learning and Deep Learning models. - Design and implementation of predictive models for detecting neural patterns and classifying signals. - Development of data analysis and visualization tools for scientific interpretation of results - Suppor to the Earth and Space Sciences research group

Agent

Iqor Colombia

Aug 2025 - Current (11 months)

- Help drivers with their problems and issues. - problem-solving and customer support.

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Data Scientist Freelance

smart pymes

Feb 2025 - Jun 2025 (5 months)

- Direct information gathering from clients - Data cleaning and outlier detection for companies - Forecasting models and statistical analysis of company behaviors - Visualization of results and findings displayed in Power BI dashboards

DATA SCIENTIST APPRENTICESHIP CONTRACT

Bancolombia

Jun 2024 - Dec 2024 (7 months)

• Conducted ETL/ELT processes for data wrangling and transformation using Python and Pandas to drive data-informed decisions. • Automated manual processes across departments, leveraging Python and Power Automate to increase efficiency. • Designed and implemented Power BI dashboards to facilitate data visualization and analysis. • Developed a SharePoint repository and created a PowerApp Scorecard for performance tracking and evaluation. • Utilized relational databases and SQL to ensure efficient extraction, transformation, and loading of large datasets from multiple sources into structured formats for analysis, enhancing data accessibility and usability. • Engaged in predictive modeling and statistical analysis using Python (with l

RESEARCH ASSISTANT

University of Medellín

Jan 2024 - Jun 2024 (6 months)

• Developed a cloud-based analysis using R-shiny to enhance projects and research as a Geostatistical Analyst, applying advanced statistical and spatial analysis techniques. • Worked on cleaning and extracting data before visualizing it using Python and R, utilizing libraries such as R-selenium, Pandas, Seaborn, and Matplotlib. • Helped teachers and researchers with their tasks, ensuring accuracy and reproducibility of datasets through web automation and data collection techniques. • Leveraged knowledge of relational databases and Microsoft Power BI to support data-driven research projects, enhancing the overall data management and visualization processes. • Created engaging and informative visualizations in Domo and Plotly, effecti

REPRESENTATIVE OF THE FACULTY OF BASIC SCIENCES

University of Medellín

Jun 2022 - Jun 2024 (2 years 1 month)

• Coordinated with multiple departments to help students • Organized meetings with the academic council to improve the problems around the university. • Promoting academic and extracurricular activities, fostering a sense of community within the faculty of basic sciences.

Luis Carlos Arenas Villamizar

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