Etl Developer
Current- Developed and maintained database structures, writing advanced stored procedures, functions, and programs. Scheduled regular jobs for monthly snapshot tables to ensure data accuracy and efficiency.
- Optimized data warehouse performance by refining views with complex joins and by converting views to indexed materialized views, significantly enhancing data retrieval speeds and system efficiency.
- Implemented materialized views to replace long-running complex views and scheduling them periodically to eliminate the stale data, drastically improving the runtime and responsiveness of Power BI visualizations.
- Expertly designed and deployed both simple and complex materialized views, utilizing fast and complete refresh techniques to optimize data presentation and accessibility.
- Led comprehensive data migration projects, seamlessly transferring data from legacy systems to Microsoft SQL Server, ensuring accurate data mapping and integration.
- Pioneered the migration of data from Microsoft SQL Server to Azure SQL Database, facilitating advanced data utilization in cognitive search applications and contributing to innovative chatbot development.