Purna Chandra Donkala

Data Analyst @Cigna Healthcare

US

Designed and developed dynamic Power BI and Tableau dashboards to visualize business KPIs and customer behavior, enabling data-driven decision-making. I craft complex SQL queries and build end-to-end ETL pipelines using Python and SQL to extract, clean, and transform large datasets, significantly enhancing data accuracy and processing efficiency.Using Python libraries such as Pandas, NumPy, Seaborn, and SciPy, I perform advanced statistical analysis, anomaly detection, and A/B testing to drive product optimization and uncover actionable insights.I implement scalable cloud solutions leveraging AWS services including EC2, S3, Redshift, and Lambda to automate workflows, support cloud migration, and manage high-volume data processing. I also integrate third-party APIs and utilize MongoDB for unstructured data analysis, improving customer segmentation and sentiment evaluation.Collaborating closely with stakeholders, I define critical business metrics, lead data governance initiatives, and optimize database performance—achieving up to a 30% reduction in query execution time.

Kennesaw State University

Master of Science - MS, Computer Science

Sri Venkateswara College of Engineering, Tirupati

Bachelor's degree, Electrical and Electronics Engineering