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Azure Databricks PySpark ETL Engineer
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Data Engineer
Tata Consultancy Services
Mar 2013 - Mar 2018 • 5 yrs
• Designed and delivered end-to-end ETL pipelines using Informatica PowerCenter, integrating Salesforce data into Thomson Reuters' central data warehouse and transforming healthcare data in compliance with HIPAA/HL7 standards • Performed star schema data modeling (fact & dimension tables) to optimise reporting and analytical query performance • Ensured data quality through automated validation, deduplication, and reconciliation across CSV, database, and API sources • Built Power BI dashboards and KPI visualisations for US healthcare clients to support data-driven decision-making