Mamatha Devanaboina
Mamatha Devanaboina

Senior Data Analyst / Data Engineer

Open to offers · Member since 27 Jul 2026
Message
Location
Frisco, United States
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Senior

About

Professional summary

I am a Senior Data Analyst and Data Engineer with more than 5 years of experience working across healthcare and enterprise data environments.

My background includes Oracle SQL, PL/SQL, data warehousing, ETL validation, production support, and enterprise reporting. I have worked extensively on complex query development, performance tuning, stored procedures, packages, triggers, cursors, and analytical window functions.

I have strong experience investigating data anomalies, performing root cause analysis, and reconciling source-to-target data across Oracle, PostgreSQL, Redshift, Snowflake, and cloud platforms. I also have hands-on experience with data governance, metadata documentation, data lineage, and master data management concepts.

In recent roles, I have supported healthcare data processing and reporting, including Medicare claims and enterprise datasets. I have collaborated closely with business analysts, ETL developers, DBAs, QA teams, and data management teams in Agile environments to deliver reliab

Skills

38 capabilities

Tech stack & tools

Working toolkit

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Development

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Experience

Career history

Data / AI & ML Engineer Quest Diagnostic

I develop complex Oracle SQL solutions to analyze enterprise healthcare datasets and investigate production data anomalies across data warehouse and OLTP environments.

I design and maintain PL/SQL stored procedures, packages, functions, triggers, and cursors to automate validation, transformation, and reconciliation processes. I also use analytical SQL functions and performance tuning techniques to improve batch processing and reporting efficiency.

In addition, I build RAG and LLM-based solutions with FastAPI and vector databases to support intelligent retrieval and natural language access for enterprise healthcare data.

Data Scientist/Control-M SME CVS Health

I developed and optimized Oracle SQL queries to support production analysis, enterprise reporting, and daily reconciliation workflows.

I investigated data anomalies, performed root cause analysis, and supported production validation and break-fix activities across warehouse and ODS environments. I also monitored Control-M scheduled ETL workflows and validated data replication between operational systems and enterprise data warehouses.

I worked in Agile environments while supporting multiple production requests and maintaining metadata, data dictionary, and lineage documentation.

Data Engineer / Data Scientist Ascension Health

I developed complex SQL queries and Oracle PL/SQL routines to analyze Medicare claims and enterprise healthcare data.

I collaborated with business, ETL, DBA, and QA teams to validate transformation logic, investigate production issues, and support ETL validation and deployment activities. I also maintained data governance artifacts such as data dictionary, lineage, metadata, and business rules.

I performed data cleansing, reconciliation, and query tuning to improve reporting quality and operational insights.

Data Analyst AIG Hospitals

I developed Oracle SQL queries and PL/SQL procedures to support enterprise healthcare reporting and operational analytics.

I designed triggers, stored procedures, functions, cursors, and packages, and used analytical functions, BULK COLLECT, FORALL, and exception handling to improve batch processing performance. I also supported data warehouse and ETL validation activities.

I worked with ETL developers, business analysts, and DBAs to troubleshoot ETL failures, document mappings, and improve data quality through cleansing, reconciliation, and production validation.

Education

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