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Leonardo Marusich

@leonardomarusich

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Bilingual data analyst focused on automation, ETL, and actionable insights.

Argentina

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What I'm looking for

I seek a role where I can apply Python/SQL-driven ETL, automation, and ML to improve operations, work in a data-driven team, and deliver measurable business impact.

I am a bilingual data analyst with hands-on experience applying Python and SQL to solve real business problems and deliver measurable operational improvements.

I design and maintain ETL pipelines, automate recurring processes, and centralize legacy data into MySQL to improve data quality, traceability, and reporting consistency.

I build interactive dashboards and visualizations with Power BI and Matplotlib, and I apply machine learning for prediction, classification, anomaly detection, and fraud detection to support decision-making.

I prioritize business impact and operational efficiency, delivering audit-ready reports and automated workflows that reduce manual effort and accelerate controls and verification.

Experience

Work history, roles, and key accomplishments

Current

Data Analyst

Current

Municipality of Villa María

Mar 2025 - Present (1 year)

Designed and maintained ETL pipelines and migrated legacy databases to MySQL for payroll and attendance of 900+ employees, automating processes to reduce operational time from ~2 days to a few hours and improving reporting consistency and audit readiness.

Python Pandas NumPy MySQL ETL Data Cleaning Machine Learning Time Series Analysis

Current

Data Analyst

Current

Freelancer

Jan 2024 - Present (2 years 2 months)

Provided data collection, cleaning, and integration from SQL and external APIs, built dashboards and automated recurring reports to surface actionable insights and improve operational monitoring for local businesses.

Python Pandas NumPy SQL Matplotlib API Integration Automation EDA

Education

Degrees, certifications, and relevant coursework

Instituto Politécnico de Córdoba

Technical Degree in Data Science & AI, Data Science & AI

Technical Degree in Data Science & AI with experience in ETL, statistical analysis, and machine learning models; training in prediction, classification, and applied AI techniques.

Universidad Tecnológica Nacional - Regional Villa María

Technical Degree in Programming, Programming

Technical Degree in Programming with training in full‑stack development, databases, algorithms, and computational logic; experience building APIs and automation solutions.