Vignesh J
Data Engineer||SnowPro Core Certified ❄️||Snowflake Cloud || ETL || SQL || IICS || Mulesoft
- Role
- Data Engineer at Cognizant
- Location
- Coimbatore, TN, IN
- LinkedIn followers
- 500 followers
About Vignesh J
As a Snowflake Developer, I bring over 4 years of hands-on experience in designing…
Experience
Data Engineer
Feb 2023 — Present · Coimbatore, IN
Migrated data from SQL Server to Snowflake, ensuring seamless integration and optimized performance across environments. Designed and implemented end-to-end data pipelines in Snowflake, enabling efficient data ingestion, transformation, and loading for analytics and reporting.Ingested semi-structured (JSON) and structured (CSV) data from AWS S3 into Snowflake using the COPY INTO command, with robust error handling and metadata tracking.Developed stored procedures to automate data workflows and business logic, including implementation of Slowly Changing Dimensions (SCD) Type 1 and Type 2 for historical data tracking and versioning. Created dynamic views and utilized MERGE statements to support incremental data loads.Implemented Snowpipe for real-time data ingestion from AWS S3 into Snowflake, enabling automatic loading of new files as soon as they are added to the S3 bucket.
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