Owned 3 client operations end-to-end, building customer segmentation models and delivering ad hoc data analyses. Segmented customers by purchase probability, contributing to a 12% increase in total operation sales. Migrated a production scoring pipeline from SPSS to R, reducing runtime by 95% (from 2 hours to 5 minutes). Integrated 800+ official statistical variables into the data enrichment pipeline. Collaborated with a 5-person Argentina–Brazil team.

Delivered 10,000+ tutoring sessions, maintaining a 4.7/5 average rating. Achieved Master Tutor rank, the platform's highest tier, and was favorited by 1,000+ students. Translated complex statistical and data science concepts into clear, accessible explanations for students.

Entered, cleaned, and validated data from records across 5 public hospitals. Identified and removed 100+ duplicate patient records, improving data quality and dataset integrity. Collaborated with hospital staff to resolve data discrepancies and ensure data validation across records.