Hemashree Rangareddy

Senior Data Engineer @Charles Schwab

Overland Park, KS, US

Built and maintained scalable batch and real-time data pipelines using Azure, AWS, Spark, and Kafka.Developed and optimized ETL/ELT workflows with Azure Data Factory, Airflow, Python, and SQL.Designed cloud-native data lakes and warehouses using Azure Data Lake, Synapse, and Snowflake.Engineered and tuned Spark and PySpark jobs for high-volume data processing and cost efficiency.Implemented streaming pipelines with Kafka and Azure Event Hubs for low-latency analytics.Applied dimensional data modeling (star and snowflake schemas) for analytics and BI.Enforced data quality, CI/CD, security, and governance standards (RBAC, encryption).Delivered analytics-ready datasets for BI, ML, and reporting in agile, cross-functional teams.