
New to Contra
João Guilherme is building their profile!

With experience in Python, SQL, Pandas, and Power BI, I specialize in data cleaning, preprocessing, exploratory data analysis (EDA), ETL workflows, and reporting. I can identify and remove duplicates, handle missing values, standardize data formats, merge multiple datasets, and create efficient data pipelines that improve data quality and support business decision-making.
$25 - $50/hr
Maringá - Floriano, Brazil
Fluent in Portuguese • Professional Working Proficiency in English