KeslinRaja T

Worked on migrating an on-prem data warehouse to Snowflake by designing scalable data pipelines, implementing ELT transformations, and optimizing data structures. Built Snowflake objects like warehouses, schemas, stages, file formats, and secure views. Integrated various data sources using ETL tools and automated ingestion through Snowpipe, Streams, and Tasks. Performed performance tuning, data validation, and version control for efficient cloud data processing.

Contributed to transitioning legacy database systems into Snowflake by engineering high-performance data pipelines and modular ELT processes. Created and managed Snowflake artifacts including warehouses, staging zones, data marts, and governed views. Integrated multiple data sources using automated ingestion frameworks powered by Snowpipe and CDC features. Delivered improved data performance through query tuning, schema re-design, and consistent data validation practices.

Supported migration of legacy data systems to Snowflake by designing high-performance ELT pipelines and secure data models. Automated ingestion using Snowpipe and CDC tools while improving efficiency through tuning, re-modeling, and data quality enforcement.

Worked as an ETL QA Engineer verifying data ingestion and transformation from various sources into cloud and on-prem data warehouses. Designed and executed test cases, validated business rules, and performed data reconciliation using advanced SQL. Reviewed ETL mappings, monitored job execution, and worked with DevOps teams to ensure stable release deployments. Ensured data governance and accuracy as part of continuous integration and testing practices.

Handled healthcare support operations in a medical billing, including first-level troubleshooting of billing queries. Provided first-level support for medical billing queries and end-user issues. Communicated updates and status reports to customers, ensuring service quality and satisfaction.