Data Engineer, | United Health Group | October 2022 – Present

• Designed scalable ETL/ELT pipelines in Python, SQL, and Spark to process 20TB+ daily healthcare and financial data, ensuring HIPAA compliance.

• Architected Delta Lake data models in Databricks with schema evolution, ACID compliance, and time-travel for audit readiness and regulatory reporting.

• Migrated legacy Informatica workflows to AWS (S3, Glue, Redshift, EMR), cutting processing times by 45% and infrastructure costs by 20%.

• Implemented data quality and governance frameworks (Great Expectations, Airflow), reducing incidents by 30% and improving downstream analytics reliability.

• Partnered with Data Science teams to enable fraud detection and predictive models, accelerating deployment of clinical insights.

• Mentored junior engineers, promoting AWS and Databricks best practices.

Data Engineer, HDFC Bank | August 2020 - December 2021

• Built real-time ingestion pipelines with Kafka, NiFi, and Spark Streaming for banking transactions, enabling fraud detection and RBI/AML compliance.

• Automated reconciliations with AWS Lambda, S3, DynamoDB, reducing manual intervention by 40%.

• Optimized BigQuery datasets, improving performance by 60% for compliance dashboards.

• Integrated external APIs (credit bureau, market data) to enhance risk scoring models.

Data Engineer, Wipro |May 2020- Aug 2020

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Conducted business process analysis for telecom provisioning, identifying automation opportunities that cut manual order handling by 15%.

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Authored FRDs/BRDs for OSS/BSS integrations; collaborated with cross-functional teams to optimize workflows, reducing SLA violations by 20%.

Data Engineer, Cognizant | June 2017- April 2020

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Built SQL pipelines for churn analysis and revenue leakage detection, increasing retention by 10%.

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Developed BI dashboards in Tableau and SQL for executives, enhancing decision-making.

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Reduced data mismatches by 35% through automated integration workflows across CRM and billing systems.