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Upama Mahato

@upamamahato

Senior Data Engineer at Elevance Health building healthcare data and RAG pipelines, processing over 1 TB of data daily.

United States
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At Elevance Health, I engineer enterprise data pipelines supporting Elevance Health and Carelon, processing more than 1 TB of healthcare data daily. I also built interoperability pipelines that reduced the availability time for selected datasets from multi-hour batch cycles to under 30 minutes.

I led key workstreams migrating more than 100 ETL workflows into AWS, Databricks, Snowflake, and lakehouse architectures. I developed transformation models for healthcare analytics and optimized workloads, reducing critical pipeline runtimes by approximately 30–35%.

At Elevance Health, I built AI-ready and RAG data pipelines for clinical documents and operational knowledge, preparing content for governed retrieval by downstream LLM applications. I also implemented data-quality and governance controls across clinical, claims, pharmacy, and member data.

At McKesson, I contributed to Ontada oncology data processing and supported clinical datasets for research and real-world evidence. Earlier, I analyzed payment data at Citi and supported Db2 administration and cloud migration activities at Bank of America.

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North Dakota State University logoNU

North Dakota State University

Master's, Electrical and Computer Engineering

Master's degree in Electrical and Computer Engineering from North Dakota State University.

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