- Implemented data validation checks and automated error-handling processes within data pipelines, resulting in a 30% improvement in data quality and accuracy.- Created interactive dashboards and predictive models using Tableau to provide stakeholders with real-time insights on customer acquisition costs, lead generation, and retention rates, resulting in a 30% increase in data accessibility.- Utilized customer segmentation techniques to identify high-value customers and generated key metrics from business performance, increasing targeted marketing efficiency by 20% and boosting customer retention.- Utilized SQL and Python to clean, prepare, and analyze large datasets from Google Analytics and HubSpot, identifying key trends and user behaviors.