Sonali Badgujar

Performed data annotation and data labeling on operational and transactional datasets to improve reporting accuracy. Designed and optimized SQL ETL queries to extract, transform, and validate data from multiple business sources. Built automated Excel reports and Power BI dashboards for KPI tracking, reducing manual reporting effort by 40%. Conducted root cause analysis to identify data issues and process gaps. Collaborated with cross-functional teams to define business metrics, data rules, and reporting requirements. Ensured data quality, consistency, and SOP compliance across reporting datasets.

Supported data annotation, data preprocessing, and feature preparation for machine learning use cases. Used Python, Pandas, and Scikit-learn for data cleaning, transformation, and analysis. Analyzed large datasets to generate insights, contributing to a 10% improvement in marketing ROI. Developed Power BI dashboards and visual reports for stakeholder review and decision-making. Performed data validation and quality checks before model training and reporting.